Electric Fence BTD‑SJQ (white) is a tensioner/accessory used in electric fence systems. Its main role is to help tighten and secure the electric fencing wire or polywire line, ensuring it stays taut and correctly aligned across posts or insulators. Tight wire improves conductivity and overall effectiveness of the fence.

This particular model is white in color, typically indicating it’s for visible fencing applications or simply matches white polywire or components in lighter-colored installations.