It is a Woodworking Tool/Angle Tool/2 in 1 Angle Rulers Gauges Tri Square 230mm Sliding T-Bevel Level Measuring Tool. Handle Material: Ebony, Blade Material: Stainless Steel, Angle Range: 0 To 360 Degree. Application: Fit For For Both Amateur DIY And Professional Use! Mainly Used For Marking, Scribing And Angle Copying Of All Kinds Of Woodwork!