Round Polypropylene Test Tube Rack for 12 Mixed Tubes (4 x 25mm + 8 x 19mm) Biology_Entomology & Zoology Four-prong cork-lined retort clamp with

Four-prong cork-lined retort clamp with an integrated boss head

plano-convex and double-convex lenses

Zinc alloy LPG Bunsen burner with flame stabilizer ships with a 2-foot neoprene gas hose for immediate bench setup in chemistry classrooms

Optically-worked glass double convex lens with a 150mm focal length and 1

Round Polypropylene Test Tube Rack for 12 Mixed Tubes (4 x 25mm + 8 x 19mm) Biology_Entomology & Zoology Four-prong cork-lined retort clamp withPolypropylene round test tube rack holding 12 tubes four at 25 mm and eight at 19 mm with 360 degree access for benchtop chemistry demonstrations and student experiments.