6 Sender Keylock quickdraws, 12 CM. Straight gate​/​bent gate key lock, light grey-gold. Production date: 08​/​2023 (Taiwan). I bought this 6-pack one year ago, they were never unpacked. They are stored in a dark dry place in my closet. They have been half a year exposed to lamp light. The official Mammut website reports this about the shelf life: "Mammut carabiners are made from either aluminum or steel, which does not lose strength with time (unlike textile fabrics). When stored unused under optimum conditions, these carabiners have an unlimited service life. However, with use, you must regularly check each carabiner carefully for signs of wear and be conscious of any high stress contact the carabiner faces during use. Mammut quickdraws contain a sling (or dogbone) made of fabric with a limited life span. If it is stored unused under optimum conditions, its service life is 10 years. Please note that it is possible you must retire carabiners or draws after the first use because of high stress impacts including falling rocks, hard falls or sharp edges" (https://www.mammut.com/us/en/support/product-support/care-instructions/carabiners-and-quickdraws). they are 100,98 euro's new: https://www.bergfreunde.nl/mammut-sender-keylock-quickdraws-klimset/

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I have used another 6 of these outdoors, and I am vere satisfied with these quickdraws. They are lightweight and easy to handle. Yet I never needed to open this 6-pack...