OneWheel charge jack cap

I improved my previous design by closing in the end and added the six pack option. Assemble using a piece of kiteboarding line or similar diameter string. Tie a knot in one end, then feed the other end through the hole and then tie another knot about 3/4" inch from the cap or to desired length. Cut off excess. Cap is tapered but slightly oversize so some sanding may be necessary for optimal fit.