Description: Being made of highly elastic silicone with intelligent molecules, it will not deform and will not absorb impact energy, which is safer than ordinary protective covers. Its circumference is adjustable,tear and pull, so that it can be adjusted in size to be suitable for different types of balance bikes, scooters, bicycles and other vehicles with stems. The thicker fabric increases the friction between the cover and the stem, making it less prone to drift and making it more comfortable to handle. When cleaning, you can wipe the shell of the Protective Cover with a wet towel or paper towel. Do not use corrosive and abrasive cleaners to prevent it from being corroded. Specification: Color: As shown Type: Kid Cycling Chest Protector Material: Silicone Size: 15x10x4cm Suitable: For Balance Bike Stem Size Chart: 15x10x4cm/5.91x3.94x1.57inch Package Includes: 1*Bike Chest Protection Cover(15 Pack) Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!