For use with a Stake Out Pole (shallow water fishing anchor). Mount on side of kayak for convenient storage of pole. May work well with other items. Made to accept a ¾ inch diameter pole. Installs where you cannot reach inside (with No. 8 Screws and No. 8 well-nuts) or where you can reach inside (with No. 8 Screws and stainless steel lock-nuts). Two clips included to hold one pole. Hardware is Not Included. A = 1.75, B = .75, C = 1.25, D = .75, E = .5, all in inches. (Sea-Lect part number K491345-1)