Product Option: Single Fold - If you're exploring new avenues in direct mail, these touchless tool keychains are a great way to promote your brand. The Tek Klean Key is made of tough ABS plastic and comes with a folding 5.7" x 5.25" display booklet -- a great place to add a custom message in difficult times. The tool slips right on to a keychain and it's great for opening and closing doors, using public ATM touchscreens, elevators and more. An antimicrobial additive prevents bacteria and mildew. Add your school, sports team, organizational or company logo, emblem or message to customize.