KENGEL Electric Device Automatic Fishing Hook Tier Tool Tyer Machine Tying Device Tie Knot Lure Fishing Hook Line Tyer… Price: $12.68 (as of 26/10/2020 20:52 PST- Details) & FREE Shipping.

Easy to use,avoid fishing line damaged by hook.
Increase tension strength between hook and line.
Suitable for almost all fishinghooks(#1-#9) ,Power By: 2* AAA battery (Battery not included)