Prograde Corkscrew Snap w/Ball Bearing Swivel, 100% Stainless Steel (Select Tensile Test Strength and Package Qty) Select the Tensile Strength and Quantity Material: 100% Stainless Steel Dimensions: 350lb= 2.8" x 0.47" x 1.9mm, 450lb= 3.25" x 0.5" x 2.3mm Precision Ball Bearing Swivel, Welded Stainless Steel Rings Black Anodized Finish