Check your Croll Ascender

Petzl recently had some returns from cavers, who reported major wear on their CROLL ascender. After examining six returned ascenders, Petzl found that the stainless wear plate was perforated and that the cam was worn beyond the product retirement criteria defined by Petzl. This excessive wear can put the user in a very difficult situation.

Link to rest of article

https://www.petzl.com/INT/en/Sport/News/2016-2-2/Determining-when-a-CROLL-ascender-is-worn-out-%28caving-context%29#.VxoFUz-6C-7