The Magic Gripper Wheel Kit turns a couple of Magic Gripper door clamps into a mobile trolley. It is a great way to move heavy or unwieldy doors around with little effort. The wheel kit will transform your existing Magic Grippers, allowing you to create more uses. The kit comprises 2 x 300mm zinc plated steel tubes, 4 x self tapping fixing screws to connect the bars to the gripper body, 2 x castoring wheels and 2 x castoring wheels with locking brake. Suitable for use on smooth surfaces,; recommended maximum load 50kg. Magic Gripper door clamps not included.