DMM has put out a safety warning for some of their carabiners. If you have any DMM carabiners, please check the warning notice of September 11th to see if the model and serial number matches your biners. It appears all the carabiners at risk are from 2014 and 2015, but check anyway if you have older biners. Please check the DMM site [http://dmmclimbing.com/] for updates.