I am offering a set of two Petzl HMS-type Am'D Double-Locking Carabiners, which I imported directly from a US arborist supply distributor about 7 years ago. I used them about a dozen times after purchase, and then stored them indoors. Since I will not be using them in the future, I would like to sell them to someone who wants them. Please understand that this product is used, and consider using it at your own risk. 〇 MBS (Minimum Breaking Strength) in normal use: 28KN