CATEYE Reflex Rack Rear Bike Light: Tweet Pricing £17.99 In Stock (Warehouse) Description Cateye: Compatible with any type of rear rackBattery tail lamp with reflector for rear rackLamp standards: StVZO / RKF / DanishReflector standards: StVZO Z / BS / UN IVA / UN IA / CPSCTool-free battery exchangeWeight: 106 gBattery: AA alkaline battery x 2pcs As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.