Tarp Bungee Ball Knot-Pocket Replacement
A replacement for the hard ball on a tarp ball-bungee: a 32 mm dome with two parallel 6.5 mm bores that take a 4–6 mm shock cord loop, a recessed pocket on top so the end knots sit flush, and a 45° V-groove around the middle where the loop hooks back over. It's 32 mm across and 25 mm tall, prints without supports, and replaces the balls that crack or go missing on truck-bed, trailer and firewood tarps.
outdoor tarp bungee shock-cord