The fulcrum part is double hook, so it is durable and the fulcrum will not lift up even if you are pinched with a thick cord, so the string can be firmly cinched. Reduce the time of attracting work. Easy to pull vertical cords or lure to horizontal strings. It can be opened and closed smoothly even after repeated use for a long time. The opening of the cord opens wide, making it easy to fasten the string. Stem retaining inner diameter: 0.9 inches (24 mm); Material: weather-resistant polypropylene; *Price is for delivery in a pack of 200.