Description: Made of rubber material, non-toxic and durable. It works brilliantly for bottom baits, wafters or pop-ups. Simply thread onto your mainline, tie on your hook and then slide sleeve into place. It replaces the need for shrink tube and gives a the hook an aggressive angle. Suitable for carp fishing rigs. Specification: Material: Rubber Length: approx. 20mm / 0.79inch Color: Green Package Includes: 30 Pieces Carp Fishing Line Aligners Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Please kindly understand. Thank you