- Double bearings and larger washer - The training bike stabilisers use double carbon steel bearings and an enlarged washer for quiet, smooth operation and longer service life. - The larger washer fully covers the bearing, reducing the risk of bearing detachment and unexpected movement that could lead to a fall. - Designed to support safe, confident riding as your child grows. - Thickened wheel with high quality PU material - Wheels are made from high quality PU material for quiet and durable performance with improved shock absorption. - The wheel thickness is 2.5 cm, 0.5 cm thicker than ordinary wheels, which helps reduce bumps and makes riding easier and more comfortable. - Universal diameter and available size - Bracket with five adjustment holes allows mounting on bicycles with wheel sizes 12, 14, 16, 18, and 20 inches. - Five-hole bracket provides versatile compatibility across common bike sizes. - The round, friendly design complements various bikes; note: for variable speed bicycles. Use scenarios - Beginning riders at home or in the park: stabilisers provide extra balance and stability so children can learn to pedal and steer with greater confidence. - Family rides on mixed bike ages: stabilisers help younger riders remain stable on shared bikes, improving safety during outings. - Multibike households or small shops: adjustable design fits multiple bikes without needing separate stabilisers for each size, simplifying setup and use.