The rowel is significantly thicker and more rounded than on the original Comfort Roller spurs. It rolls on contact with the horse and thus avoids rubbing and chafing on the fur and skin of sensitive horses. The unique fit and design can be adjusted to the foot by bending. These Spurs also have an intelligent spur strap loop for a perfect fit on the boot. They are also made of break-proof, high-quality stainless steel.