Fishing line reel spooler system Adjustable clamping force to control the tightness of the upper thread, making line setup easier and spooling more precise. This helps reduce line slip, tangles, and uneven spools during terminal tackle fishing. Spooler operation designed for righthanded users: hold the pole with the left hand and operate the crank with the right hand for steady, onehand assisted spooling during terminal tackle fishing. Compact and lightweight design: easy to carry, store, and transport. The unit is easy to install and remove, providing portable performance for onsite spooling needs during fishing trips. Note: wire coil is not included. Usage scenarios On the dock or shore, prepare terminal tackle lines by setting the clamp and tightening the upper thread to get a clean, even spool with minimal slack. While on a boat, perform quick line changes or respooling with one hand on the pole and the other on the crank for efficient setup during fishing sessions. For field maintenance, easily detach the spooler when not in use and store it in your tackle box or bag to keep your gear organized for the next outing.