Right Angled Glass Prism, 2 x 2 x 2.75" Material_Hardwood Five-inch demonstration compass with a

Five-inch demonstration compass with a 4-inch magnetic needle and a printed compass map

Tensioner pulley keeps chain engagement consistent on this hand-cranked chain drive

Zinc-and-carbon electrochemistry demonstration cell with electrolyte

Mid-length 750mm red insulated lead with crocodile clips at both ends

this set covers the mid-range bench volumes with raised graduations and tapered pouring spouts

Right Angled Glass Prism, 2 x 2 x 2.75" Material_Hardwood Five-inch demonstration compass with aLarger right angle glass prism at 2 by 2 by 2. 75 inches, the bulky triangular geometry handling wider beams for total internal reflection, beam redirection, and image inversion work.