The Bike-It ABS Top Box is ideal for commuters, city riders or anyone who requires more luggage capacity than a rucksack, without the need for expensive luggage systems.ABS luggage top box 24L / 52L capacityUniversal fitting bracket will fit most carrier racksCan be removed from fitting bracket when not in useSpring-activated self-locking mechanismReflective detail trim for increased safetyThe Bike-It ABS Top Box comes in 24L / 52L capacity options, and can be removed from fitting bracket when not in use, using the anti-tamper quick release mechanism activated securely from inside the box.This box uses a spring-activated self-locking mechanism, and a reflective detail trim for increased safety.