Over time small scratches will form in your slider from use. These scratches can cause drifting during delivery. In addition to allowing you to customize your slider easily, the Rotator disks system helps eliminate drift by allowing you to remove the disk, rotate it and put it back on until you find the straightest sliding path. This can be done repeatedly to extend the life of your sliders.
Small fits a ladies back, Medium fits a ladies front or men's back and Large fits a men's front.