Strauss Gel Seat Cover (Black) and Bicycle Solar Tail Light Material: Other In-box Contents: 1 Thick pad with shock absorption function and soften the riding, inner side the seat cover with gel-point, ensuring the seat does not slip after installation With 3D anti-slip granules on the back, necessary tool for your outdoor cycling. High density sponge slip mat comfortable and soft, ergonomic design Solar powered the solar Bike light full charged needs 4 hours(sunlight) and work for 6-8 hours Solar power, energy saving with 3 modes of light, slow flash, quick flash, steady light Easy to install and remove - lights are simple and fashion, very easy to install and remove without involving any tools