ROCKO ORCA AUTO LOCK R-5/8X150-PM but the HAR-64936 uses a

but the HAR-64936 uses a steel dorsal dee and friction buckles on the shoulder strap for height adjustment

One of our most popular Buckingham Manufacturing saddles

Contoured shank with offset for natural leg fit

Note: Not rated for life support

ROCKO ORCA AUTO LOCK R-5/8X150-PM but the HAR-64936 uses aThe rockO is a blend of the traditional oval and the rockD giving it more strength than the standard oval. This design is great for users that need extra room at the bottom of their carabiner while keeping their gear aligned. Double locking carabiner with a push up and twist mechanism. Can be set to remain in unlocked position. Min. Breaking Strength: 24kN Weight: 2. 85oz. Gate Opening: 0. 93"