Gulff Flexman (medium viscosity) is the best option if you need Classic medium viscosity resin features but a flexible and soft finishing. It is very strong, flexible and soft. Remember that predators have large and strong teeth. Thus, Flexman is not too soft. Flexman finishing meets the requirements for shrimp, streamers, fly heads and eggs. Please notice that the more flexible the resin is, the more time it needs for curing. 15ml..