Check the listing for details. Titanium Key Ring 5 Pack 18mm / 3/4" Ti Split Ring EDC Matte Finish USA SELLER. Condition: New. Listed at 12.00 USD. 5 Pack Titanium 18mm Small Flat Split Ring Made of TC4 Titanium 6AL4V Alloy with a Natural Matte Finish High Quality EDC Ti Gear Ultralight .02oz / .7g Outside Dia. .70" / 18mmInside Dia. .58" / 14.8mm Additional Key Rings of Any Size Ship Free!See my other items for Medium 25mm and Large 32mm sizes Free US Shipping - Get it Fast & Free Note: Ti key rings do not have a memory like common split rings, they can be permanently deformed if opened to much.This is especially the case with the small sizes.These will accept normal flat keys just fine. Visit My eBay Store: Vintage Coins and Titanium Tools ShippingUSPS First Class Mail We are in the USA, Not over seas. Get your Stuff in Days not Weeks! Your purchase will be Meticulously Packaged and Shipped Next Business Day