DMM Professional - Complex 3D rigging focused onto a single anchor. The DMM Rigging Hub can be used to form a super strong centralised anchor point for use in treework, rope access
DMM Aluminum Anchor Rings: TreeStuff.com Customer Luke O'Quin's Review In The Field - YouTube
DMM Anchor Ring
DMM Anchor Ring, 40 mm Matt Grey, Seiltechnik-Hannover