XMark Chrome Olympic Spring Collars with Plastic Grips (pair) XM-3605-P XMark’s Chrome Olympic Spring Collars ensure plate weights are held firmly in place during lifts allowing you to maximize your workout potential by preventing weights from sliding or falling off the bar. The chrome finished spring collars provide a clean appearance and the grips enable easy plate weight changes from the bar. Sculpt, build and define your body with XMark, the mark of excellence. Features: - Two Olympic chrome spring collars - Plastic grips allow easy and comfortable plate weight changes