Dual SlideLock Carabiners joined by magnetic locking collar Aluminum carabiners and collar with stainless steel slide-to-lock gates Quick release or locking collar Keeps items accessible yet secure Powerful neodymium magnets 6lb | 2.7kg magnetic holding power Dimensions: 1.6" x 3.3" x .74" | 40mm x 84mm x 19mm Weight: .8oz | 22g