diff --git a/demo/illusions/angular.ipynb b/demo/illusions/angular.ipynb
index c826e193..3e18470b 100644
--- a/demo/illusions/angular.ipynb
+++ b/demo/illusions/angular.ipynb
@@ -1,5 +1,12 @@
 {
  "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Radial components & illusions: wedges, wheel-of-fortune/pin-wheel"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -9,6 +16,9 @@
     "import matplotlib.pyplot as plt\n",
     "import numpy as np\n",
     "\n",
+    "import IPython\n",
+    "import ipywidgets as iw\n",
+    "\n",
     "from stimuli.utils import plot_stim\n"
    ]
   },
@@ -33,6 +43,81 @@
     "plt.colorbar()\n",
     "plt.show()"
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## wedge"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from stimuli.components.angular import wedge\n",
+    "\n",
+    "help(wedge)\n",
+    "\n",
+    "# Define widgets\n",
+    "w_length = iw.IntSlider(value=5, min=1, max=10, description=\"heigh/width [deg]\")\n",
+    "w_ppd = iw.IntSlider(value=40, min=1, max=64, description=\"ppd\")\n",
+    "\n",
+    "w_angle = iw.IntSlider(value=45, min=0, max=360, description=\"angle\")\n",
+    "w_rot = iw.IntSlider(value=45, min=0, max=360, description=\"rotate\")\n",
+    "w_radii = iw.FloatRangeSlider(\n",
+    "    value=[1.0, 2.0], min=0.1, max=5.0, step=0.1, description=\"radii (inner,outer)\"\n",
+    ")\n",
+    "\n",
+    "w_idisc = iw.FloatSlider(value=1.0, min=0.0, max=1.0, description=\"intensity disc\")\n",
+    "w_iback = iw.FloatSlider(value=0.5, min=0.0, max=1.0, description=\"intensity background\")\n",
+    "\n",
+    "b_size = iw.HBox([w_length, w_ppd])\n",
+    "b_intensities = iw.HBox([w_idisc, w_iback])\n",
+    "ui = iw.VBox([b_size, w_angle, w_rot, w_radii, b_intensities])\n",
+    "\n",
+    "# Function for showing stim\n",
+    "def show_wedge(\n",
+    "    angle=None,\n",
+    "    rotation=None,\n",
+    "    length=None,\n",
+    "    ppd=None,\n",
+    "    radii=None,\n",
+    "    intensity_disc=None,\n",
+    "    intensity_background=None,\n",
+    "):\n",
+    "\n",
+    "    stim = wedge(\n",
+    "        angle=angle,\n",
+    "        rotation=rotation,\n",
+    "        visual_size=(length, length),\n",
+    "        ppd=ppd,\n",
+    "        radius=radii[1],\n",
+    "        inner_radius=radii[0],\n",
+    "        intensity_background=intensity_background,\n",
+    "        intensity=intensity_disc,\n",
+    "    )\n",
+    "    plot_stim(stim)\n",
+    "\n",
+    "# Set interactivity\n",
+    "out = iw.interactive_output(\n",
+    "    show_wedge,\n",
+    "    {\n",
+    "        \"angle\": w_angle,\n",
+    "        \"rotation\": w_rot,\n",
+    "        \"length\": w_length,\n",
+    "        \"ppd\": w_ppd,\n",
+    "        \"radii\": w_radii,\n",
+    "        \"intensity_background\": w_iback,\n",
+    "        \"intensity_disc\": w_idisc,\n",
+    "    },\n",
+    ")\n",
+    "\n",
+    "# Show\n",
+    "display(ui, out)"
+   ]
   }
  ],
  "metadata": {