Stopper 2-Hole Rubber 43mm 36mm 8.5 10lb , Each

Details:

Stopper 2-hole rubber 43mm 36mm 8.5 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: 8.5, Top diameter: 43 mm, bottom diameter: 36 mm, 10l