1Good Material: Made of high quality ABS plastic, impact resistance, high hardness and strength, sturdy and firm, durable. 2Reasonable Structure: The metal ring is used in the hole, which is wearresistant, does not affect the hole, and will not shake when punching. 3Precise Adjustment: The position of the baffle can be adjusted precisely, including a scale. Used for precise positioning when wood punching. 4Important Tool For Woodworking: Exquisite workmanship, easy to operate, an indispensable tool for woodworking, convenient and practical. 5Portable: Conform to ergonomic design, easy to hold and use, light weight and compact, easy to carry, perfect for professional use. Item Type: Dowel Jig Material: ABS Punching Diameter: Approx. 6mm or 0.2in, 8mm or 0.3in, 10mm or 0.4in Adjusting distance of baffle plate: Approx. 45mm or 1.8in Color: Black 1 x Dowel Jig (2 components) Please allow slight error due to manual measurement. Thanks for your understanding.