diff --git a/index.html b/index.html
index a8d57a3f..8e38d301 100644
--- a/index.html
+++ b/index.html
@@ -1220,6 +1220,8 @@ <h1>Input Range</h1>
                   <label id="radius-input-label" for="input-range-thumb-input">
                     <input
                       type="number"
+                      min="1"
+                      max="120"
                       id="input-range-thumb-input"
                       name="desired-radius"
                       class="toggle-radius input-range-inputs"
@@ -1245,6 +1247,8 @@ <h1>Input Range</h1>
                   <label id="radius-input-label" for="input-range-track-input">
                     <input
                       type="number"
+                      min="1"
+                      max="120"
                       id="input-range-track-input"
                       name="desired-radius"
                       class="toggle-radius input-range-inputs"