Amazon.com : Sling Rings 3-inch Diameter by Cutie Carry. Infant Approved, mom Loved. Aluminum, lab Tested for Strength and Safety. Works with Your own Material or Convert wrap to Sling. (Dark Grey) :
Baby Tula Ring Sling Instructions – Baby Tula EU
Misty Mountains Aduial Ring Sling | Oscha Slings
4 Ways To Use Your Slings Rings and What Size To Choose | Oscha Slings