Ascenders without handles

SpiderJack 2.1 Basic by A.R.T.

Ascender/Descnder all in one! Can be used on lines 11mm - 13mm. No Need for separate clutches! (Cannot be attached midline.)

Petzl CROLL left-facing ascender

Considered in a variety of rope disciplines as the chest ascender of choice.

Petzl BASIC right-facing ascender

Often seen aside the right knee in rope-walking systems.

Petzl Secur for connecting chest ascender

Works great for SRT systems using ascenders like the Croll

Petzl ASAP Mobile Fall Arrester

Designed to travel up, down or sideways with passenger and stop fall, slide or uncontrolled descent even if grabbed.

Wild Country Ropeman Ascender

This thumb-sized ascender works great in a pinch. Made in 2 models but SherrillTree only sells "non-agressive"  (bar-toothed) version. For 10 to 11 mm lines

Petzl Tibloc Ascender

...just when you thought it couldn't get any smaller... This ultra-lightweight ascender requires use of a Petzl am'd carabiner to function properly. For 8-11mm lines

Rock Exotica Dualcender

Designed specifically as fall protection (not fall arrest) for (secured) footlock ascent on doubled rope. 
For 11.5-13mm lines.

Trango Cinch Belay Device

Excellent lanyard adjuster with fold-out handle for improved leverage. For lines 9.4 to 11mm

10-ft Flipline / A.R.T. Positioner Combo

This German made rope grab provides smooth adjustment even under load. (requires carabiner for saddle attachment)

Petzl Pantin Right Foot Ascender

Perhaps the single greatest thing to happen to the right foot since Dr. Scholls met Mrs. Buttersworth.

Petzl PANTIN, Left Foot Ascender

Now man has an opposing toe, just like chimps.

CMI LEFT Foot Ascender

Milled from a solid aluminum block like many CMI products. 
For lines 9-16mm

CMI RIGHT Foot Ascender

A.R.T. Positioner (only)

No lanyard included. For lines 11 to 13mm

A.R.T. Positioner w/ Swivel (only)

*Device Only* Rope Grab Device with a Swivel to provide 360-degree rotation. For line 11 mm to 13 mm.

Replacement Cam for ART Positioner

Replacement Clutch for ART Positioner I & II. Contains the spring.

Unicender with 30" Tether and Prusik

The Unicender by Rock Exotica is an all-in-one ascender/descender that works in both single and doubled rope techniques (SRT and DdRT). This unique "mechanical split-tail" designed replaces the friction element (tied hitch) of a DdRT tree climbing system.

INSPECTION RECALL OF ROCK EXOTICA'S UNICENDER (click here)

Unicender

 The Unicender by Rock Exotica is an all-in-one ascender/descender that works in both single and doubled rope techniques (SRT and DdRT). This unique “mechanical split-tail” designed replaces the friction element (tied hitch) of a DdRT tree climbing system. Invented in 2005 by arborist Morgan Thompson and now produced by world-renowned machining phenomenon Rock Thompson of Rock Exotica, the T6 alloy Unicender also functions cleanly on single line for abseiling and is not limited to use by professionals only— recreational or beginning climbers will find it a rewarding investment for occasional to regular use as well. 

INSPECTION RECALL OF ROCK EXOTICA'S UNICENDER (click here)

Singing Tree Rope Wrench with Tether

The Singing Tree Rope Wrench with Tether is a new invention designed for a new method of climbing single rope technique (SRT) that very closely mimics doubled rope technique (DdRT), as commonly practiced by arborists.

NOTE: for Single Rope Technique (SRT) climbing only.

Slic Pin for Singing Tree Rope Wrench

The "Slic" pin can be used in the place of the upper friction bolt on the Singing Tree Rope Wrench to make the device mid-line attachable.

Quick Release Pin for the Singing Tree Rope Wrench

This 5/16" stainless steel quick release pin features an aluminum push button. This pin can be used in the place of the upper friction bolt on the Singing Tree Rope Wrench to make the device mid-line attachable.

Release Lever for SpiderJack by ART

New with the release of the SpiderJack 2.1, but now you can upgrade your current SpiderJack. Release Lever is now 1/3% longer for more control. Fits Spiderjack 1, Spiderjack 2 and the Spiderjack 2.1

Dyneema Extension Kit for SpiderJack by ART

New with the release of the SpiderJack 2.1, but now you can upgrade your current SpiderJack. Fits Spiderjack 1, Spiderjack 2 and the Spiderjack 2.1

SpiderJack 2.1 Dyneema by A.R.T.

Ascender/Descnder all in one! Can be used on lines 11mm - 13mm. No Need for separate clutches! (Cannot be attached midline.) 2 carabiners are needed to use this device.