Retractable fastener features: Hard plastic and durable retractable cord that can easily carry up to 31.8 inches of retractable cord with 8 oz (227 g) weight; Easy to use 2 pack retractable ID badge straps; Great for families; Unique design: elastic cord, moderate length, easy to use Specifications and Material: 2 pack set retractable key chain, ABS, alloy cord length: Approx. 31.5 inches (80 cm). Color: Black Reel Diameter About 1.8 inches (4.55 cm). Reel Thickness: About 0.4 inches (1 cm). Note: Due to the light shooting and display, there may be slight differences in the actual measurements, and the measurement allowed error range of 0.4 - 1.2 inches (1 - 3 cm). Please apologize for your apology and if you have any concerns, please feel free to contact us working time is month-Friday 10:00 - 19:00 If you have any concerns, please feel free to contact us, we will respond quickly