Size: 6.2 cm x 3.5 cm, retractable reel, 2 pieces, up to 60 cm retractable cord, each badge reel has a keychain and a plastic buckle. Unique design elastic cord of appropriate length and easy to use. The keychain is an ingenious addition to the ID clip. Note: The retractable keychain is lightweight and easy to stretch. It is very durable and firm for lightweight items. The design feature is only applicable to lightweight items, such as ID cards, badges, entry guard cards, and keys (less than 50g is recommended). Please do not use heavy items or pull them to the end due to gravity, as this can easily cause damage to the telescopic spring. ID card key badge holder suitable for multiple securing points for keys and ID badges. Good weight, sturdy construction, can be attached to your bag, belt loops, or top.Solid and secure - Made of zinc alloy, hard plastic, and a strong, durable retractable cable, the extension cable works perfectly every time. The dual-clip system gives you peace of mind that you won't lose your ID and keys.