48 Split Ring Fishing Lure， Lanyard Connector Keychain Nickel Plated Spring Steel 15mm Made in the USA<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>O.D. Tolerances: Steel and Stainless Steel + .015 - .005</li><li>Approx. thickness .057 in / 1.45 mm</li><li>Outside Diameter .604 in / 15.34 mm</li><li>Nickel Plated Stainless steel</li><li>Approx Inside Diameter .490 in / 12.45 mm</li></ul></div><img src="http://ecx.images-amazon.com/images/I/512mY1Woz%2BL.jpg" noproxy>