One, black # 8.5 stopper. These are domestically manufactured lab grade stoppers. The stoppers are solid, natural rubber. The size of each stopper is molded on the top. Specifications:    Size # 8.5 Diameter Top: 1.68  42.9 mm Diameter Bottom: 1.41  35.7 mm Height: 1.00  25.4 mm Durometer: 43 + – 5 Free Sulfur: 0.05% To review…
One, black # 9 stopper. These are domestically manufactured lab grade stoppers. The stoppers are solid, natural rubber. The size of each stopper is molded on the top. Specifications:    Size # 9 Diameter Top: 1.75  44.5 mm Diameter Bottom: 1.47  37.3 mm Height: 1.00  25.4 mm Durometer: 43 + – 5 Free Sulfur: 0.05% To review…
One, black # 9.5 stopper. These are domestically manufactured lab grade stoppers. The stoppers are solid, natural rubber. The size of each stopper is molded on the top. Specifications:    Size # 9.5 Diameter Top: 1.81  46.0 mm Diameter Bottom: 1.50  38.1 mm Height: 1.00  25.4 mm Durometer: 43 + – 5 Free Sulfur: 0.05% To review…