CorQs Strike Indicators are extremely light and incredibly sensitive to give anglers an edge in catching fish. These indicators react quickly for faster bite detection, even on the lightest strikes. The dimpled surface of CorQs indicators provides lift and reduces friction for greater casting distance and improved accuracy. CorQs Strike Indicators utilize a rubber gasket loop to keep the indicator in place, so it won't slide down the line. The rubber loop also will not damage or cut the line.CorQs are made of eco-friendly, natural cork material that floats high and is easy-to-see. The cork color offers a natural presentation that won't spook fish. These indicators are great for use in all water conditions. Qty. per pack: 3 Size: Small - Diameter: 1/2 in. Size: Medium - Diameter: 5/8 in. Size: Large - Diameter: 3/4 in. CorQs Strike Indicators are made in the U.S.A.