TO LAST:All metal zinc alloy construction with steel wire cord makes the most durable retractable holder, tested under more than 100,000 pulls. Package includes 2pcs retractable id holder with reel clip and ID strap, last forever. HEAVY DUTY:Max loading weight is 120g/4.5oz or 8 keys compares to 85g/3oz or 4 keys of other items on the market. Comes with key ring and perfect as retractable key chain. NON-BREAKABLE CORD:27.5 inch steel wire cord that is much stronger and than normally 24 inch Nylon pull cord of other items. Unlock doors and access office is a breeze with this retractable reel. SOLID REEL CLIP:The clip is screw-fastened in the back side so no need to worry that it will fall off. clip on to belts, pockets, purse straps, backpacks or anywhere you like. Perfect name card holder for any industry, men and women. Great for nurses, maintenance, and office , airport and , security , police, , government, teachers, students, custodians, factory workers, employees, outdoor enthusiast and etc. colour:Black Material:Plastic + metal Size:About 4cm in diameter Package Contents: 2 * Holder Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.