Ascenders without Handles

Petzl PANTIN, Left Foot Ascender

Now man has an opposing toe, just like chimps.

Petzl Pantin Right Foot Ascender

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

CMI LEFT Foot Ascender

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

CMI RIGHT Foot Ascender

Petzl CROLL left-facing ascender

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

Petzl Secur for connecting chest ascender

Works great for SRT systems using ascenders like the Croll

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

Petzl BASIC right-facing ascender

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

Petzl ASAP Mobile Fall Arrester

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

SPIDERjack by A.R.T.

Provides very fluid ascent and descent (competition-level stuff) on arborist-grade climbing lines 11-13mm. Includes Mighty Mouse QuadLock Carabiner

Spider Jack 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.)

Replacement Clutch for SPIDERjack

With use, dirt and grit in your ropes will erode this replaceable part in your SPIDERjack and grip will not be so pronounced.
For 11-13mm ropes.

Replacement Tether for LockJack TWIN

Dyneema replacement tether for (all models) Lockjack TWIN

A.R.T. LockJack SPORT ascender / descender

Provides smooth ascent and descent on 11-12.5mm arborist-grade ropes when used in a doubled rope technique (DdRT) configuration. Has 1 point of attachment for close-to-body use.

Swivel Connector Accessory for Lockjack SPORT

Replaces the non-swiveling connection point on Lockjack SPORT with metric allen wrench.

Replacement Clutch for SPORT or TWIN 11-12mm

With use, dirt and grit in your ropes will erode this replaceable part in your Lockjack and grip will not be so pronounced.
For 11-12mm ropes.

Replacement Clutch for SPORT or TWIN 12-13mm

With use, dirt and grit in your ropes will erode this replaceable part in your Lockjack and grip will not be so pronounced.

For 12-13mm ropes.

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

Rock Exotica Dualcender

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

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)