Spirit Level Aluminium Easy to hold aluminium profile measuring 24x50mm. Crush-proof tubular vials that are highly transparent and durable. Highly resistant to ultraviolet light and temperature fluctuations. The bubble is not affected by static electricity. Shock absorbing end protectors and temperature-proof vial mountings. Dimensions (mm): 400(L) x 24(W) x 50(H) Tolerance (Normal): 0.5mm/m Tolerance (Upside Down): 0.75mm/m Net Weight: 280g