Made by Finnish fly tackle manufacturer GULFF, this resin cures completely tack free and clear. The Classic formula is an excellent all-round fly tying resin. The Fatman formula is higher viscosity for building a bulky layer. You save about 33% with the larger size bottle. The colors are ideal for nymphs, midges and making visible 'strike points' on flies. 1/2 oz. (15 ml) bottle.