PETZL - Ring, Connection Ring INTENDED USE: The RING has a round shape that ensures optimal functioning in all directions. IMPROVES YOUR HARNESS: Direct installation on the SEQUOIA or SEQUOIA SRT harness's attachment bridge to improve the arborist's lateral mobility. RELIABLE: The round shape ensures a firm stop against the gated rings. MATERIAL: The RING is made from aluminum. STRENGTH: The breaking strength is 23 kN.