C. Sherman Johnson "C. Sherman Johnson Wrap Pins Velcro Pin Locking Devices for Open Body Turnbuckles 7/16 & 1/2 - 2-Pack, WRAPC4-P"

"C. Sherman Johnson Wrap Pins Velcro Pin Locking Devices for Open Body Turnbuckles 7/16 & 1/2 - 2-Pack, WRAPC4-P. Just make your adjustment push the pin attached to the hook and loop through the hole and wrap the hook and loop strip around the turnbuckle body.