Orvis Corqs Strike Indicator - Eco-friendly and straight-up darn effective. These strike indicators, constructed from natural cork are more buoyant than their synthetic counterparts, provide less surface friction for effortless drifts, and produce less splash thanks to their light weight. All that, and you can feel good about yourself for using an environmentally friendly product. Eco-friendly and constructed from natural cork More buoyant than synthetic Provide less surface friction Produce less splash In natural, neon