These are clips for standard size imperial rubber tubing. Originally designed to keep multiple blood tubes organized on actors, but works well for general runs as well, especially on long runs these can really help! Each one can hold 4 tubes and can dovetail into each other to chain together.
Included are 2 of each for sizes for 1/8OD, 1/4OD, and 3/8OD diameter tubing. 3D printed in ABS/Polycarbonate blend.