Description: Premium Material: The stair tread template tool is made of premium aluminum alloy material, has high hardness, sturdy, and ensures a long time to use.Easy to Use: The stair jig can help you measure stair treads easily and quickly, is easy to operate, accurately measures angle and length, and provides a reasonable layout.Flexible and Adjustable: The stair tread measuring tool features 10.4inch-53.4inch adjustable length, and the angle can also be adjusted, it can be used to measure spiral stairs, ordinary stairs and stair corners.Multiple Functions: The stair tread template tool is also suitable for measuring risers, shelves, cutting drywalls, partitions, etc.Practical Tool: The stair jig shelf layout tool is suitable for professional woodworkers and DIY enthusiasts, effectively improves work efficiency and saves effort. Specification: Product size: Full length 50cm or 19.69inchMaterial: Aluminum Alloy Package Includes: 1 Set Stair Tread Gauge Template Tool