3 Sets card holder Reel for ID Strap lanyard Badge Retractable Alligator Clip Quantity: 3 Sets(3 Pcs Card Holder + 3 Pcs Reel) Material: Leather Color: Black Card approx WxL: 70 mmx 100 mm (2 6/8 x 3 7/8 inch) Accepts credit card size cards approx 86mm x 54mm(3 3/8 X 2 1/8 inch credit card size) Alligator Clip reel: Diameter: 32mm (1 1/4'') Approximate 28' pull length You can use:ID card, badge, Factory worker, Students, office worker, etc