Carabiner-style pin-on reel, key reel, reel key holder, key chain, black Extends up to approximately 60cm. I personally use it for preventing loss and organizing small items during mountain climbing. I'm not sure about the weight capacity, but it works fine for lightweight items. It's very convenient. Please refer to the other images for more details. Thank you. #Buntaro’s Pin-on Reel #Buntaro’s Mountain Climbing 34004138