Clarks designed this gauge to help you measure your toddler’s feet with confidence, in the comfort of your own home. It is recommended for children with a Clarks shoe size 2 1/2 up to size 13, approximately from walking to the age of 3. For older children or those with feet larger than 13, we recommend our Junior Gauge. Each gauge comes with step-by-step instructions and an online video demonstration is also available. To find your child's Clarks shoe size from the measurements taken from your foot gauge click here.