Features: Feature a thick, soft silicone Cushions. It's great for balance bikes and kids bikes, providing a comfortable cycling experience. Make of silicone, memory Foams, and fabric. These materials ensure durability while offering maximums comfort. With cartoon design adds a funny to your childs bike while ensuring their comfort during ride. Drawstring with adjustment buckles designs, easy to use, stable and nonslip. Comes with rain cover to protect the Seats from water damage during rainy. Specifications: Materials: Silicone Styles: Black Animal/Blue Astronauts/Black Astronauts/Pink Animal size: Small/M S Suitable for Bike Seats: Length: 17.5-22.50cm/6.89-8.86inch Width: 14-15.50cm/5.51-6.1in M Suitable for Bike Seats: Length: 23-27cm/9.06-10.63inch Width: 14-16cm/5.51-6.3inch Package Includes: 1Pc Kids Bicycles Seats Cushions note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.