The Refina is a vibration lure designed especially for trout in deep areas that are unreachable with minnows. There are two models, the L model 14g and H model 19g, allowing anglers to choose the most appropriate lure according to the situation. The L model has a short-type fin, while the H model has a long fin. The action response varies between these two models due to not only the different weightings but also due to the length of the fins. We have used a polyethylene resin for the fin that is more flexible and durable compared to the ABS material used in the body. We have employed a rolling swivel for the hook-eye which reduces the likelihood of the fish getting free of the hook – a problem often experienced with vibration-type lures. It is also well-suited to handle the ‘rolling fight’ that is characteristic of trout.