The Impact Gel Shoulder Bridge Pad is designed to support horses with a pronounced shoulder pocket and prominent withers. The Bridge Pad is composed of shock absorbing Impact Gel an a layer of memory foam, and encased in black spandex. To effectively reduce pressure points and discomfort for your horse, place the Bridge pad directly against the horse with the tapered edges facing the horse. The Bridge pad is available in two different styles. The original shoulder bridge pad is pictured is 8.5 X 15" long and 3/4" thick. The square (western) pad is 8.5" wide, 15" long and 3/4" thick. These pads are to be used under another saddle pad of your choice. Please note the square (western bridge pad is $5 more than the original shoulder bridge pad.