Thank you for viewing! This is a replacement hook for a free-sliding tenya with proven fishing results. It can be used with free-sliding shrimp tenya! The leader of the sub-hook is long, so it can handle large shrimp. 〈Specifications〉 Main Hook: Tenya hook size 18, fluorine-coated, dark gray color Sub Hook: Small sea bream hook size 12, no twist Line: Sea Braid #10, leader length approx. 6cm Swivel: Size 7 Fluorine coating and chemical polishing provide excellent rust resistance and hooking performance. Because it is handmade, there may be variations in the length of the leader. Please refrain from purchasing if you are concerned about this.