Package includes: 1 x router table insert plate (9.3 x 4.7 x 0.4 in), 4 x router insert rings, 1 x pack of fixing screws. Compatible with: 1hp drt50. To ensure proper fit, please measure your router hole position before purchase. Dimensions: Router Table Insert measures 9.3 x 4.7 x 0.4 inches (235 x 120 x 9 mm). Outside hole distance: 2.76 x 2.44 inches (70 x 62 mm). Inside hole diameter: 2.17 x 1.77 inches (55 x 45 mm). This router table insert is suitable for use with most Maktec models. WARNING: The wood router plate size is 9.3 x 4.7 x 0.4 inches (235 x 120 x 9 mm). Please measure the router hole spacing before purchasing. The trimming machine flip board features fine manufacturing, accurate scale, and easy operation. Designed for ease of use, it helps save effort and expand the functionality of the trimming machine. The woodworking router plate is made of aluminum alloy, resistant to rust, with a clear scale that is durable and not easily worn, making it a reliable helper for woodworking tasks. Color: Silver Material: Metal Package Contents: 1 x router table insert plate set Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement error allowed is +/- 1-3 cm.