Watch Glass/ Cover Lid for Beakers and Flasks/ Evaporation Dish, Polished with Ground Edges for safe handling, Material: glass, Quality glass, The 2.0mm glass thick construction resists shattering, Can hold small samples to use under a low-power microscope, 4in (10cm) in diameter
Reagent Bottle, Narrow Mouth, Material: polypropylene, autoclavable, are rigid, translucent and have excellent contact clarity, Include polypropylene cap, Height: 62 mm, Neck I.D: 14 mm, Cap Size: 20 mm, Size: 30 ml
Support Ring, Steel Rod, Steel rod, zinc-plated support ring with attached boss head clamp and thumbscrew, Distance from support to center of ring is 4-1/2in for all sizes, Diameter: 3
Equilateral Prisms 3pc set, 1in, 2in, and 4in lengths, Material: Acrylic, Each prism is individually wrapped to protect it Will create a rainbow with any standard light source (phone will work) -- use a dark piece of paper with a 1-2mm slit, Size: 25mm face size