End Cap for xConnect style ws2811 string light connectors. Tried several designs but was not happy with the tolerances, so I made this one. Tested on several connectors I had laying around, YMMV. Using the string lights outside in the Pacific Northwest winter, so anticipating lotsa rain. Printed in black Overture PETG on an Ender 3 v2. Note that I originally thought this connector type was ray wu, apologies if that confused anybody.