Large extending side to comfortably hold 8 x 3 pint bait boxes. Universal design will fit most round leg seat boxes. Attaches to 3 legs for extra stability. Supplied with 2 telescopic 25mm support legs with mud feet. Universal 3D Snag-Free fitting - fits 25mm, 30mm & 36mm legs. Can also be fitted to the rear of the box for tackle storage when fishing. Dimensions: Width 42cm x Length 53-81cm.