Density Cube, includes one each of acrylic, oak, pine, poplar, steel, aluminum, copper, brass, nylon, and PVC cubes packaged in a wooden storage box, Includes a reference table showing density values of individual specimens, Set of 10
Salt Bridge, inverted U tube with its ends closed by sintered discs. Length (in)7.5 x Width (in)5.5 x Height (in)1.2, provides a more effective method of making reversible cells then wet filter paper/agar gel methods. Diameter of arms 13 mm, overall width 80 mm, overall height 100 mm