The RM-Tec Rock Bottom QC Rotator Sleeves from RIDGEMONKEY is a semi-rigid tungsten impregnated sleeve, designed for use with the RM-Tec QC Rotator Swivel, with a pronounced bend to throw your hook exactly at the right angle for maximum efficiency of the rig. Covers the QC Rotator Swivel's rounded Quick Change elbow and is a critical component in ensuring your rig remains neat, tidy and safe. This super-heavy tungsten version adds weight to the rig, reducing the need for a large blob of putty, and includes an integral hook ring stopper to keep your mini hook swivel from snagging on the sleeve, allowing it to automatically reset if the rig fails . 10 per pack.