DMM
DMM Anchor Rings
Strong, smooth rings for building climbing anchors and friction savers.
Rings
Representative photo. Check the retailer listing for the exact model, color and size.
Photo: Tree Pruning in RVA (Carytown, Virginia) by Gamma Man, CC BY 2.0
An openable ring that installs around slings and anchors without threading an end.
The Petzl Ring Open is an anchor ring that opens, so you can add it to a sling, rope or anchor without threading anything through. Climbers use the Petzl open ring to build anchors, attach to existing slings and set up multi-point connections.
A closed ring has to be installed before the sling is sewn or the rope is spliced. The Ring Open removes that limit. Open it, place it around the sling, eye or anchor, close it, and you have a smooth connection point in seconds.
That is handy when building anchors that connect several slings, when adding a ring to an existing cambium saver, or when you want a clean attachment point on a saddle bridge or rigging setup.
It is also handy as a spare in a rescue kit. If you need to add a connection point to a sling or anchor quickly, an openable ring is faster than rebuilding the anchor.
Keep the opening mechanism clean; sap and grit can make it hard to close fully.
Make sure the ring is fully closed and secured per Petzl's instructions every time you load it. Inspect the opening mechanism, bore and body for wear, cracks and grit. Compare with closed rings like the Petzl Ring.
Anything you hang your life on must meet the applicable standard, be used per the manufacturer's instructions and ANSI Z133, and be inspected before every climb by a trained user.
Train yourself to check closure every time, the same way you check a carabiner gate. Make the check part of your routine so it happens even when you are in a hurry.
| Type | Openable connection ring |
|---|---|
| Brand | Petzl |
| Material | Aluminum |
| Use | Anchors and multi-point connections |
Specs are from the manufacturer's published figures where available. Confirm against the product listing before you buy.
The standard Ring is a closed ring. The Ring Open has an opening so it can be installed around slings and anchors without threading.
Yes, when it is closed and secured according to Petzl's instructions and used within its rating. Check it before every climb.