Tacky Fly Dock 2.0 Holds up to 15 Flies The perfect addition to any pack, cooler, boat frame, or fly tying station, the Fly Dock 2.0 offers the improved holding power of Tacky silicone technology and space for up to 15 flies. Store flies of any size on hard surfaces with a durable, recycled polycarbonate component base and the supplied 3M Adhesive Strip. The included, adhesive-backed Velcro?strip can also be attached for use on Velcro pads (adhesive to adhesive).