32 neodymium magnets which develop a power of 2400 Gauss each to promote healing and prepare muscles and tendons for exercise. The magnets are distributed in the lumbo-dorasl fasciae, lats, and shoulders. The rug are made of breathable micro-porous material to reduce heat. Made in Italy. Please note that that these boots are not intended to replace veterinary care. Magnetic Therapy is a non-invasive drug free treatment of injuries. The magnetic fields stimulate blood flow and at the same time also help with cellular growth and ligament repair. Because of their polarity, magnets draw blood to the area that they are placed in. Measurements for this rug are taken down the spine from the withers to the tail. Color: Black Size: Large