Ceramic Magnets with Keeper and Stamped Ends, 3" (Discontinued) Physics and core layers detach one

and core layers detach one by one for geology instruction

Fitted with a grey hand knob for tightening and a small plastic pulley

this three-piece acrylic equilateral prism set supports optics experiments in dispersion and wavelength separation

and 38mm lens holder - an inexpensive starter platform for image-formation experiments

Three-part color-coded human skull model differentiates bone regions and sutures for detailed cranial anatomy instruction

Ceramic Magnets with Keeper and Stamped Ends, 3" (Discontinued) Physics and core layers detach oneStamped N and S ends on this 3 x 0. 5 x 0. 25 inch ceramic bar pair simplify pole identification, with a spacer and keepers in a 3. 5 x 1. 5 x 0. 625 inch cardboard storage box.