Prevents pinching & chafing Used on bony or sensitive areas Allows the horse to concentrate without discomfort Easy to fit & very secure once in place Black The Prolite Curb Chain Cushion is a discreet Prolite cushion pad to prevent pinching & chafing at key pressure points. Used on bony or sensitive areas, they allow the horse to concentrate without discomfort. Easy to fit & very secure once in place.