Product Dimensions:27.5 x 14.5 x 7.5 cm; 310 Grams Specifications: Material: PU+Steel Color: Blue, Yellow, Green, White (optional) Size: Approx. 14.5*27*7.5cm / 5.7*10.6*2.9inch Weight: Approx. 305g About this item Made of quality materials, comfortable, lightweight, durable and anti-deformation. Easy to install, great replacement accessory for your bike. Suitable for most mountain bikes and road bikes. The PU surface is wearable and waterproof, the soft pad inside excels in shock absorption to offer you comfortable usage experience. Sturdy steel rail offers stable fixation onto bike seat post and can absorb shock. Ergonomic design is comfortable for pedaling with less abrasion between saddle and thighs, hollow out design can make you feel breathable in long time cycling in summer. Made of quality materials, comfortable, lightweight, durable and anti-deformation. Easy to install, great replacement accessory for your bike. Suitable for most mountain bikes and road bikes. The PU surface is wearable and waterproof, the soft pad inside excels in shock absorption to offer you comfortable usage experience. Sturdy steel rail offers stable fixation onto bike seat post and can absorb shock. Ergonomic design is comfortable for pedaling with less abrasion between saddle and thighs, hollow out design can make you feel breathable in long time cycling in summer.