STOPPER 2-HOLE RUBBER 50 MM 42 MM 10 7LB ,Each

Details

Stopper 2-Hole Rubber 50 Mm 42 Mm 10 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, Top Diameter: 50 mm, Bottom Diameter: 42 mm, 7lb