Stopper 2-Hole Rubber 41 mm 33 mm 8 10lb , Each

Details:

Stopper 2-hole rubber 41 mm 33 mm 8 10lb^ 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: 8, top diameter: 41 mm, bottom diameter: 33 mm, 10l