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
great biology resource, Prepare your own slide specimens with this microscope slide making kit. The reusable glass slides can be used time and time again, providing excellent value. Includes 12 slides, 12 cover slips, and a storage box holding up to 25 slides
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