One PAIR of large aluminium sling rings. Make your own ring sling or use the rings with a short wrap as a "no sew ring sling" or for fancy finishes! Large aluminium sling rings are great for your own ring sling projects. The outer diameter is about 8 cm. This size works nicely with woven baby wrap fabrics. The rings can be washed in a machine but we advise you to cover them with a sock or piece of cloth to protect the color.