Spring Balance, Tubular

Rectangular plastic body, metal scale, with zero adjuster, suspension ring and load hook. Scale both in gram and Newton.

Consists of two each of the seventeen blocks as follows:
Blocks, 50 x 40 x 30 mm – Softwood, Hardwood, Paraffin wax, Aluminium, Iron and Foamed Polystyrene.
Blocks, 20 x 20 x 100 mm – Perspex, Glass, Slate, Aluminium, Softwood, Marble.
Block, 50 x 50 x 20 mm – Lead.
Block, 50 x50 x 80 mm – Aluminium.
Block, 50 x 50 x 200 mm – Hardwood.
Block, 20 x 20 x 50 mm – Brass.
Block, 40 x 40 x 20 mm – Iron.