Gibbs Ascender #4SB Chain Grinders *Chest measurement: Front your back

*Chest measurement: Front your back to under armpits to front of chest

Tougher steel material and a patented design feature take the latest generation of Oregon guide bars

Stands up to the toughest conditions

Sizing your chaps: Measure from your belt to your instep and order chaps by their “overall length

Rope Lift: No rope

Gibbs Ascender #4SB Chain Grinders *Chest measurement: Front your backThe Gibbs 4S bolt Ascender . Not for self belay by solo climbers. Designed not to slip on iced and muddy ropes. Their simple, durable construction makes them almost foolproof. They are easy to assemble on the rope, yet will not slip unexpectedly. They can be rigged in all the standard methods for mechanical prusiks. MODEL #4SB 5 8" to 3 4" ropes 14mm 19mm Spring loaded Stainless steel shell Breaking weight: 5650lbs