1. Weight: about 600 grams
2. Size: about 28x18.5 cm
3. Material: rebound polyurethane, rebound seat leather, steel bow
4. Application: mountain bike, road bike
5. Power supply: contains a button battery
6. Features: bottom shock-absorbing ball design, strong shock absorption effect, not easy to break, large cushion, soft and elastic, comfortable sitting feeling, with safety taillight, hollow design, ventilation and air permeability, reducing pressure, comfortable riding