Stopper 2-Hole Rubber 39mm 31mm 7.5 13lb, Each

Details:

Stopper 2-hole rubber 39mm 31mm 7.5 13Lb^ 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: 7.5, Top diameter: 39 mm, bottom diameter: 31 mm, 13l