The Positive Synergy Back Massage Pad by Mounty Australia. This unique massage roller provides both pressure massage and pulsing massage in an automatic 4-phase cycle. The Positive Synergy Back Massage delivers all the benefits associated with the classic forms of massage. It is recommended for use both before your horse is ridden and then after exercise. While you groom your horse its back muscles will be loosened and warmed which will prevent the horse from tensing up as you are about to mount. Only muscles that are well supplied with blood will be supple and responsive.