The black cap is a valve core remover tool. Unscrew this tool from the top of the cap, and use it to remove the valve core from inside the tire valve stem.
SLIME SELF HEALING BIKE INNER TUBES 26" 27.5" 650B 29ER 700C SEALANT 8OZ
Orange Seal - Endurance Tubeless Tyre Sealant - - 8oz - Refill Bottle - MTB Road
2x Slime 8oz Bicycle Cycle Bike Motorbike Motorcycle Tyre Tube Repair Sealant 2!
SLIME 8oz CYCLE BIKE TYRE TIRE INNER TUBE SELF REPAIR PUNCTURE SEALANT 237ml
