
Size Guide
The right fit is key to an effective, clean brushing experience
Size
Age
Description
Large
Age 12+
Kids who have their 2nd permanent molars
Medium
Age 8-11
Kids who have their 1st permanent molars
Small
Age 5-7
Kids who don’t have permanent molars
Your top questions answered
Earn $15 Willo Cash when your Black Friday order includes a Starter Kit.
Limit one coupon per order. Delivered via email Dec 5.
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