[ Aluminium Alloy] The contour scribe tool is made of aluminum alloy with steel roller bearings, and the length is extended to 300mm, making it more widely used. The minimum distance between the nib and pen tip is 45mm. [Precision Contour Marker] Pulley and pointer design for both ends. Drawing is smoother on the pulley side and easier and more accurate on the pointer side. The pen holder can be moved up and down for easy change of modeling end. [Adjustable and Lockable] Looseness and tightness can be adjusted according to your needs. Our contour gauge is especially suitable for drawing the of irregular and complex objects. It can be locked and fixed after each adjustment to accuracy, and the adjustable pen holder can hold 2-12mm markers. [Easy to Operate] Adjustable with one hand. Fix the pencil in the center and draw as you push. Easy to draw lines without mistakes. [Widely Used] The contour scribe tool is a simpler tool for replicating a of shapes, perfect for tile bonding, laminating, carpet cutting, ceramic and tool mold making, and more. Colour:As Shown Material:Metal Package Contents: 1 x Contour Gauge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.