Stopper 2-Hole Rubber 17mm 13mm 00 63lb, Each

Details:

Stopper 2-hole rubber 17mm 13mm 00 63lb^ rubber stopper, 2 hole, color: black, contain a high percentage of pure rubber and weigh less than neoprene, resilient/pliable for a long time, low in free sulfur, can withstand adverse laboratory, size: 00, top diameter: 17 mm, bottom diameter: 13 mm, 63l