The Topeak iGlow fender for the rear wheel offers excellent safety at night and in poor visibility conditions, thanks to its Integral Glow technology. The fender is easily attached to the seat post using a click system and a flexible nylon strap. The highly polished underside prevents dirt accumulation and can be cleaned quickly. Suitable for road tires up to 700x25C. Technical details of the Topeak rear fender DeFender iGlow: - Material: Injected High Impact solid plastic - Lamp: 0.5W Super Bright red LED - 2 modes: Constant / Flashing - Burn time: (approx.) 50 hours / 100 hours Scope of delivery: - 1 x Topeak rear fender DeFender iGlow - Includes battery CR2032 x 2