British Stainless Steel Swivels, size 4 for Male Harris up to Ter falconBritish Stainless Steel Swivels. Hand crafted and welded from stainless steel and then polished to perfection. These swivels have been used by British falconers for many years to keep their bird’s tangle free. The excellent design of this swivel helps keep the jesses from getting tangled. (Size 4-Medium, Male Harris, tercel, Perefrine, etc.)539 - British Stainless Steel Swivels, size 4 for Male Harris up to Ter falcon. $20.00Size is 1 3/4 inch x 3/4 inch wide.