The perfect addition to any pack, cooler, boat frame, or fly tying station, Tacky holding power and space for up to 15 flies of any size. Durable, recycled polycarbonate component base and supplied 3M Adhesive Strip for attachment. The included, adhesive backed Velcro strip can also be attached for use on Velcro pads. 3.25″ x .875″ x .375″.