Stopper 1-Hole Rubber 32mm 26mm 6 18lb , Each

Details:

Stopper 1-hole rubber 32mm 26mm 6 18lb^ rubber stopper, 1 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: 6, top diameter: 32 mm, bottom diameter: 26 mm, 18l