safuty1st toddler/kids bike helmet set for boys girls 3d adjustable kids helmet protective gear set knee elbow wrist pads and multi-sports skateboard scooter cycling roller balance bike green-set small: 18.9"-21.2"/48-54cm is up for auction in Sports & Outdoors. The current bid is $1.50, 95% below the $29.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.