Color mixing and free samples are supported. The aluminum design of these promotional bottle openers makes them durable enough to use on a daily basis, while still being light enough to attach keys to without adding weight. Men and women both will love having one of these customized bottle openers to use, so there’s no reason your company can’t see the ROI in buying them. These claw opener key chains can be used for most beer bottle caps, sodas, juices, etc. Very suitable for home use, parties, restaurants, wine bars, convenience stores, hiking, camping, and traveling, etc. Measuring 2 9/16″*1/2″ there is enough size to customize your personal logo.