The bolt on the other side holds the stabiliser in place;Made of high quality material;Fits 3/8-inch thread on one side and 10 mm the other;Easy to fit;It screws onto the rear wheel axle of most kids bikes

• Weldtite Gear Extension Bolts for 3/8-inch and 10 mm Axles - Pack of 4
• 4 Pack
• Metallic

Weldtite Gear Extension Bolts for 3/8-inch and 10 mm Axles - Pack of 4Weldtite