Weights are Aluminium, Brass, Nickelled Brass or Stainless Steel.
Weight Sets up to 500g include a Polycarbonate Case. Weight Sets above 500g include Wood Hinged Case with Polycarbonate Case inside for weights 500g and below.
Individual Weights up to 500mg include a Polypropylene Case. Weights from 1g to 5kg include a Polycarbonate Case.