Steel pins and durable plastic cones allow for pre-centering for subbase changes and adjustments. Align the pin with the roof turquoise and place the cone on the pin and tighten the screw on the subbase. Quick setup and easy to use. Contents: Sub-base center cone for compact router DWP611 - DNP617 This product will be shipped from overseas, so it will take 2 to 4 weeks before delivery. Please note that due to overseas inventory status, there may be cancellations due to the circumstances of overseas. Packaging (outer box) may be crushed or damaged. Please be aware of this before placing your order. Please understand that the instruction manual is written in foreign languages.