25 blank stainless steel credit card style bottle openers. These slick bottle openers are thin enough to slide into your wallet but durable enough to open capped beverage bottles. Dimensions: 86mm x 54mm (1.2mm thick). Ball Chain Manufacturing is ISO 9001:2008 certified by the International Organization for Standardization and is also recognized by the Green Business Bureau as a certified "green business". Ball Chain Manufacturing is the largest manufacturer of Ball Chain in the world and the only company that manufactures its chain in the United States. Our chain is everywhere, and our quality is second to none. Don't settle for low quality overseas imitations. Whatever the application, this chain will last.