STOPPER 2-HOLE RUBBER 53MM 4 MM 10.5 7LB ,Each

Details

Stopper 2-Hole Rubber 53Mm 4 Mm 10.5 7Lb^ 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: 10.5, Top Diameter: 53 mm, Bottom Diameter: 45 mm, 7lb