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
Cube, Individual cubes for density experiments, Available in eight different materials: acrylic, aluminum, brass, copper, nylon, polypropylene, PVC, and steel, Each material is represented by a 1/2inch, 1inch and 11/2inch cube