PETZL Swivel Open Large Size:Default SafeBloc is a triple hole

SafeBloc is a triple hole rigging thimble that adds friction in the rigging system to the top of the tree

480gm weight with sheath

They can also be added to the Protos Integral when combined with the Protos/3M mounting arms

Makes for more efficient footlocking tree ascent

PETZL Swivel Open Large Size:Default SafeBloc is a triple holeThe Petzl Swivel OPEN is a gated swivel with large openings for attachment to a wide range of products (pulleys, lanyards). It reduces the bulk and weight of component systems and solves twisting and tangling problems with ropes and lanyards. Sealed ball bearings offer excellent performance and reliability. Specifications Weight: 130 g Breaking strength: 23 kN Certification(s): CE, NFPA 1983 Technical Use, EAC Material(s): aluminum, nylon Color(s):