diff --git a/examples/gallery/spinbox/SpinBoxPage.cpp b/examples/gallery/spinbox/SpinBoxPage.cpp
index cd04dfe2..5f29bfd3 100644
--- a/examples/gallery/spinbox/SpinBoxPage.cpp
+++ b/examples/gallery/spinbox/SpinBoxPage.cpp
@@ -4,12 +4,14 @@
  *****************************************************************************/
 
 #include "SpinBoxPage.h"
-#include <QskSpinBox.h>
 #include <QskGridBox.h>
-#include <QskTextLabel.h>
 #include <QskLinearBox.h>
+#include <QskSlider.h>
+#include <QskSpinBox.h>
+#include <QskTextLabel.h>
 
-SpinBoxPage::SpinBoxPage( QQuickItem* parent ) : Page( Qt::Horizontal, parent )
+SpinBoxPage::SpinBoxPage( QQuickItem* parent )
+    : Page( Qt::Horizontal, parent )
 {
     setMargins( 10 );
     setSpacing( 20 );
@@ -19,32 +21,85 @@ SpinBoxPage::SpinBoxPage( QQuickItem* parent ) : Page( Qt::Horizontal, parent )
 
 void SpinBoxPage::populate()
 {
-  const QMap<Qt::Alignment, QString> layouts =
-  {
-    { Qt::AlignLeft, QStringLiteral("Qt::AlignLeft") },
-    { Qt::AlignHCenter, QStringLiteral("Qt::AlignHCenter") },
-    { Qt::AlignRight, QStringLiteral("Qt::AlignRight") },
-    { Qt::AlignTop, QStringLiteral("Qt::AlignTop") },
-    { Qt::AlignVCenter, QStringLiteral("Qt::AlignVCenter") },
-    { Qt::AlignBottom, QStringLiteral("Qt::AlignBottom") },
-    { Qt::AlignLeft | Qt::AlignVCenter, QStringLiteral("Qt::AlignLeft | Qt::AlignVCenter") },
-    { Qt::AlignRight | Qt::AlignVCenter, QStringLiteral("Qt::AlignRight | Qt::AlignVCenter") },
-    { Qt::AlignTop | Qt::AlignHCenter, QStringLiteral("Qt::AlignTop | Qt::AlignHCenter") },
-    { Qt::AlignBottom | Qt::AlignHCenter, QStringLiteral("Qt::AlignBottom | Qt::AlignHCenter") }
-  };
+    const QMap< Qt::Alignment, QString > layouts = { { Qt::AlignLeft,
+                                                         QStringLiteral( "Qt::AlignLeft" ) },
+        { Qt::AlignHCenter, QStringLiteral( "Qt::AlignHCenter" ) },
+        { Qt::AlignRight, QStringLiteral( "Qt::AlignRight" ) },
+        { Qt::AlignTop, QStringLiteral( "Qt::AlignTop" ) },
+        { Qt::AlignVCenter, QStringLiteral( "Qt::AlignVCenter" ) },
+        { Qt::AlignBottom, QStringLiteral( "Qt::AlignBottom" ) },
+        { Qt::AlignLeft | Qt::AlignVCenter, QStringLiteral( "Qt::AlignLeft | Qt::AlignVCenter" ) },
+        { Qt::AlignRight | Qt::AlignVCenter,
+            QStringLiteral( "Qt::AlignRight | Qt::AlignVCenter" ) },
+        { Qt::AlignTop | Qt::AlignHCenter, QStringLiteral( "Qt::AlignTop | Qt::AlignHCenter" ) },
+        { Qt::AlignBottom | Qt::AlignHCenter,
+            QStringLiteral( "Qt::AlignBottom | Qt::AlignHCenter" ) } };
 
-  auto* const grid = new QskGridBox(this);
-  constexpr int cols = 5;
-  for(const auto& layout : layouts.keys())
-  {
-    const auto x = grid->elementCount() % cols;
-    const auto y = grid->elementCount() / cols;
-    auto* const column = new QskLinearBox(Qt::Vertical, grid);
-    auto* const label = new QskTextLabel(layouts.value(layout), column);
-    auto* const spinbox = new QskSpinBox( column );
-    spinbox->setAlignmentHint(QskSpinBox::Layout, layout);
-    grid->addItem(column, y, x);
-    column->setStretchFactor(label, 1);
-    column->setStretchFactor(spinbox, 99);
-  }
+    auto* const grid = new QskGridBox( this );
+    constexpr int cols = 5;
+
+    QVector< QskSpinBox* > spinboxes;
+    for ( const auto& layout : layouts.keys() )
+    {
+        const auto x = grid->elementCount() % cols;
+        const auto y = grid->elementCount() / cols;
+        auto* const column = new QskLinearBox( Qt::Vertical, grid );
+        auto* const label = new QskTextLabel( layouts.value( layout ), column );
+        auto* const spinbox = new QskSpinBox( column );
+        spinbox->setAlignmentHint( QskSpinBox::Layout, layout );
+        grid->addItem( column, y, x );
+        column->setStretchFactor( label, 1 );
+        column->setStretchFactor( spinbox, 99 );
+        spinboxes << spinbox;
+    }
+
+    const auto strutInc = spinboxes[ 0 ]->strutSizeHint( QskSpinBox::IncrementPanel );
+    const auto strutDec = spinboxes[ 0 ]->strutSizeHint( QskSpinBox::DecrementPanel );
+
+    auto* const columnIncW = new QskLinearBox( Qt::Vertical, this );
+    auto* const sliderIncW = new QskSlider( Qt::Vertical, columnIncW );
+    auto* const labelsIncW = new QskTextLabel( "+W", columnIncW );
+
+    auto* const columnIncH = new QskLinearBox( Qt::Vertical, this );
+    auto* const sliderIncH = new QskSlider( Qt::Vertical, columnIncH );
+    auto* const labelsIncH = new QskTextLabel( "+H", columnIncH );
+
+    auto* const columnDecW = new QskLinearBox( Qt::Vertical, this );
+    auto* const sliderDecW = new QskSlider( Qt::Vertical, columnDecW );
+    auto* const labelsDecW = new QskTextLabel( "-W", columnDecW );
+
+    auto* const columnDecH = new QskLinearBox( Qt::Vertical, this );
+    auto* const sliderDecH = new QskSlider( Qt::Vertical, columnDecH );
+    auto* const labelsDecH = new QskTextLabel( "-H", columnDecH );
+
+    setStretchFactor( columnIncW, 1 );
+    setStretchFactor( columnIncH, 1 );
+    setStretchFactor( columnDecW, 1 );
+    setStretchFactor( columnDecH, 1 );
+    setStretchFactor( grid, 99 );
+
+    sliderIncW->setBoundaries( 2, strutInc.width() * 4 );
+    sliderIncH->setBoundaries( 2, strutInc.height() * 4 );
+    sliderDecW->setBoundaries( 2, strutDec.width() * 4 );
+    sliderDecH->setBoundaries( 2, strutDec.height() * 4 );
+
+    sliderIncW->setValue( strutInc.width() );
+    sliderIncH->setValue( strutInc.height() );
+    sliderDecW->setValue( strutDec.width() );
+    sliderDecH->setValue( strutDec.height() );
+
+    auto update = [ spinboxes, sliderIncW, sliderIncH, sliderDecW, sliderDecH ]( qreal v ) {
+        const auto incSize = QSizeF{ sliderIncW->value(), sliderIncH->value() };
+        const auto decSize = QSizeF{ sliderDecW->value(), sliderDecH->value() };
+        for ( auto* spinbox : spinboxes )
+        {
+            spinbox->setStrutSizeHint( QskSpinBox::IncrementPanel, incSize );
+            spinbox->setStrutSizeHint( QskSpinBox::DecrementPanel, decSize );
+        }
+    };
+
+    connect( sliderIncW, &QskSlider::valueChanged, this, update );
+    connect( sliderIncH, &QskSlider::valueChanged, this, update );
+    connect( sliderDecW, &QskSlider::valueChanged, this, update );
+    connect( sliderDecH, &QskSlider::valueChanged, this, update );
 }