To demonstrate Archimedes's principal. The set consists of a spring balance 250gm, one aluminium block with hook, one brass block with hook, one glass displacement vessel 250ml capacity, one wooden polished block and one plastic b e a k e r 1 0 0 m l c a p a c i t y. Complete with instructions. Supplied with retort stand of cast metal 8”x5”24”x1/2” along with one small rod of 200mm & one boss head. A quality product from BESTO ideal for use in School Laboratories.