M89B DIY Altitude Measuring Tools Metric and Imperial Cards Gauge High Precision Spigot Clamps for Height MeasurementOOTDTYoots: This dovetail jig template allows you to make repeatable, strong, precise dovetail joints with ease. By controlling the positioning of the teeth and cutter, it is easy to accurately control the size of the bump. The dovetail is made of pre-made convex and concave guides that match the standard measurements used in furniture manufacturing. With metric/inch scale, accurate reading, and can meet your different needs. Made of aluminum alloy, after processing, the clamp can provide fine scale.100% brand new and high quality. All of our products are extensively tested to meet stringent and stringent quality control standards. Timely customer support can help you resolve all customer complaints. Specification: Material: Aluminum Alloy Size: 95x5 8mm/3.74x2.28inchColor: Blue/RedPackage Included: One Set Metric and Imperial Card IndicatorNote: 1. Please allow 0-1cm error due to manual measurement. Pls make sure you do not mind before ordering.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!