The Simple comes stock with aluminum spools, and requires an external friction carabiner for function. An elongated attachment point allows the harness attachment carabiner to be rotated freely, allowing adjustments with reduced risk of dropping the descender. Most commonly paired with the Freino or Freino-Z.

The spools on the Simple can be swapped with each other, or entirely replaced (we stock both aluminum and steel!), prolonging the lifespan of the device.

Attach to your central d-link with a locking carabiner. Compatible with 8.5 to 11 mm diameter semi-static and static ropes. User replaceable spools are available in both aluminium and stainless steel– yes, we sell those too!

The Petzl Rack is the rack style descender we carry. With a design that has origins in the 1870s, this descender is compatible with either one 9–13 mm diameter semi-static rope, or with two 8–11 mm semi-static ropes to facilitate long descents over 80 meters. Individual brake bars are replaceable to prolong the useful lifetime of the Rack.

The rack can be attached to the caver's central d-link with either a maillon (quicklink) or two opposed locking carabiners. The maillon is generally preferable as it is lighter, cheaper, and places the rack closer to the harness.

Functionally identical to the Simple, with the addition of a brake carabiner attachment hole. The main attachment hole is too small for a Freino or Freino-Z to flip through, making the Freino-Z UNUSABLE and the Freino usable but with significantly reduced functionality. The stock spools are aluminum. Commonly paired with any carabiner as a brake device, though reinforced carabiners like the Edelrid Bulletproof will wear slower.

The Acles is compatible with single ropes from 9-12mm in size. CT sells replacement spools, which are not compatible with the Petzl devices or vice versa. 

Multi-directional semi-circle OMNI carabiner for fastening any caving-style harness.

Descenders often require the use of a friction spur, such as the purpose built Petzl Freino. Ideal for adding or adjusting friction during the descent.

The friction spur are opposite each other on the Freino and the Freino-Z. The difference between these is ultimately for user preference, with little technical impact.

However, the Freino-Z lets you rotate the carabiner AND leave it rotated when rappelling and removing it. The Freino has a tendency to grab the rope with the exposed wiregate, which can lead to hangups on rope. The Freino Z largely eliminates this issue.

Our Delta maillon, this is omni-directionally rated, with positioning clip to insure devices stay in the same place.

The definitive hyper-static rope for recreational and professional caving. The Max-Wear sheath is designed to withstand the harshest of cave environments and makes ascending rope a breeze with its low elongation and compatibility with most, if not all, Single Rope Technique (SRT) climbing systems.

Available in 9mm and 11mm

Minimum breaking strength:

• 9mm - 23kN (5,170lbf)
• 11mm - 31kN (6,969lbf)

Elongation:

• At 300 lbf: 9mm 3.0%, 11mm 1.8%
• At 600 lbf: 9mm 4.8%, 11mm 3.6%
• At 10% of MBS: 9mm 7.5%, 11mm 4.6%

Very low-stretch, very durable.

9 mm: High strength and low elongation in lightweight package. A versatile static rope great for caving purposes. Also great for use in lightweight hauling and anchors.

Elongation at 10% of MBS: 2%

3/8" (9.5mm):
3/8" polyester static rope originally intended for arbor climbing, rope access, and lifting. 

Elongation at 10% of MBS: 3%

7/16" (11mm):

Maximum strength with low stretch. A multi-use rescue and rappel rope. Low-stretch properties and high-moisture resistance allow the 7/16" to operate consistently in wet and dry conditions.

7/16": 3.4%

NFPA 2500 (1983)