Weighing Set on Tray - Set of 9The Weighing Set on Tray Set of 9 Weights is a premium quality classroom tool designed to teach the fundamentals of mass, balance, and comparative measurement. Containing a precise combination of steel and brass weights, this set enables students to explore weight relationships, perform hands on experiments, and develop an understanding of metric weight units. Housed in a durable blue plastic tray, the weights range from 10g to 1kg and are ideal for