Burette, With PTFE Key Stopcock, Class B (ASTM)

Total 505 gm ,Comprising 1 mass of 200 gm, 2 masses of 100 gm, 1 mass of 50 gm, 1 mass of 20 gm, 2 masses of 10 gm, 2 masses of 5 gm, 2 masses of 2 gm, 1 mass of 1 gm. In box

Demonstrates the typical concept behind the architecture of roman arch structures, which are famous for their strength in compressive loading. Comprises a pre assembled 3-part buttress and a set of 23 wooden blocks. Fully assembled arch can easily support the weight of a child.