Heavy-duty key chain measurement: this chain is approx. 16.5 cm in length, 5 cm in width and 1.3 cm in height, it is foldable and easy to take when you go out Bearing limits: 0 to 220 g; Durable material: the climbing hook and key ring is made of metal, the round reel case is made of plastic, good quality makes it durable and allows you to use it for a long time Steel wire rope: the steel wire rope is approx. 39 inches/ 100 cm long, enough for you to use, and when you are out, with this rope, you can stretch it and take some different tools Wide application: this kind of retractable key ring is widely applied in many occasions, you can carry it when you do some outdoor activities, such as go fishing or climb the mountains Package includes: there are 2 heavy duty key chain in the package Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you!