SLM1200 – Spirit Level Aluminium Easy to hold aluminium profile measuring 24x50mm with magnets on the underside. Crush-proof tubular vials that are highly transparent and durable. Highly resistant to ultraviolet light and temperature fluctuations. The bubble is not a affected by static electricity. Shock absorbing end protectors and temperature-proof vial mountings. Dimensions (mm): 1200(L) x 24(W) x 50(H) Tolerance (Normal): 0.75mm/m Tolerance (Upside Down): 0.75mm/m Net Weight: 900g