Specification: Material: Aluminium alloy Table Insert PlatePlastic Router Insert Ring Size: 235mm x 120mm x 8mm/9.3 #39; #39; x 4.7 #39; #39; x 0.3 #39; #39; Color: Silver Hole Distance: 62 x 70mm Features: Made by aluminium alloy, durable in use. Convenient center-hole bushing used to align the router so it is centered in the bit hole. Make accurately drilling and mounting any router easy.