1. Stair tread tool make out from stainless steel scale plate And C aluminum alloy combined,reusable,extend (11.4in- 60.7in),Data more accurate than measure tape,Stair tread gauge combination design easy for storage.Yfor storage. 2. Stair tread template tool product use screw stainless steel riveting hanging buckle,Completely solve the phenomenon Of screw welding buckle fall off,Steel+diamond-shaped nut made of bakelite,Easy to adjust the tightness. 3. Both 0In-10In Tick mark,Sides Are curved design,Give you the angle from 0to 300And adjustable,Easy to operate And adjust to stair tread template set width providing a perfect layout for stair treads, Risers And shelves . 4. Stair tread jig can give you skirting boards And shelves Of uneven length precision provide stair cutting tools, Can help you save material And time To make your template steps risers,The decoration of the perfect . 5. Stair treads uses engineered,From impact And chemical resistant eco-friendly material, stainless steel plate material + high-strength aluminum alloy dispatching rods,Sand is anodized,To prevent bumps bruise,Showing the high-end at Item: stair tread template tool Dimension: Length: extend (11.4in- 60.7in) Material:Aluminum alloy + stainless steel colour:Blue Package Contents: 1 x Stair Tread jig 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.