The compact and lightweight TCS Rocket Tire Plug Kit contains everything you need to repair a flat tire. The kit includes the Rocket - a spike-shaped anchor that stays inside the jacket after the wick is applied to the jacket with the spike and prevents the wick from pulling out when higher jacket pressure is applied. The anchor can be reused and is available separately in the event of its loss during casing replacement. durable CNC-turned 6061 aluminium housing contains 4 anchors selectable according to puncture size contains 15 pcs of 1.5 mm thick wicks weight 55 gr.