Instruction for how to use DMM Belay Devices and warnings in details, with instructional pictures.
Mantis
Description
The classic belay device made better. Using the same high performance internal geometry as the Pivot, the Mantis is an incredibly lightweight belay device for use with either single or half ropes in situations where direct belaying is not required; perfect for the climbing wall and general cragging. The carefully sculpted rope grooves offer a greater grip on ropes from 7.5mm to 11m, the rope slots allow easy loading, and the rear of the device ensures adequate lift-off for snag-free paying out. If you are after a lightweight, high performance all-rounder, then the Mantis fits the bill perfectly.
Features:
High performance belay device.
Two friction modes for varying applications.
The classic belay device made better. Using the same high performance internal geometry as the Pivot, the Mantis is an incredibly lightweight belay device for use with either single or half ropes in situations where direct belaying is not required; perfect for the climbing wall and general cragging. The carefully sculpted rope grooves offer a greater grip on ropes from 7.5mm to 11m, the rope slots allow easy loading, and the rear of the device ensures adequate lift-off for snag-free paying...
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Device Type![]() ![]() |
Tube |
Weight (g)![]() ![]() |
45 g |
Belay Brake Assist![]() ![]() |
No |
Rope Options | 1 or 2 ropes |
Guide Mode![]() ![]() |
No guide mode |
Teeth![]() ![]() |
Yes |
Rope Range (mm)![]() ![]() | 7.3 mm
- 11.0 mm
single: 8.5 - 11 half/twin: 7.3 - 9.2 |
Certification![]() ![]() |
EN |
No reviews yet.

OK, there's not a lot to it. But it's light, it offers loads of grip for secure belaying, and it works smoothly on a wide range of rope diameters... what's not to like? If you're after a simple, effective and versatile belay device - and if you don't require the option of a guide plate mode - then the Mantis has to be one of the best choices currently available. I take mine everywhere.