Designed by us and manufactured exclusively for us.  The ring is of the perfect diameter to give sufficient space for your uplines without bringing the ring height too far down.  The swivel is a super compact design and climbing rated to 30kN.  The ring itself is SOLID aluminium so it is super strong and still lightweight.  This setup is great for traveling, about half the weight of similar steel rings and WAAAY stronger than the risky hollow tube rings.  We lab test a sample from each batch to destruction to ensure quality.