Mantis

The DMM Mantis is a featherweight belay device that is suitable for all round climbing with single, half or twin ropes from 7.3mm to 11mm. 

 

It has been optimised for 8mm to 10.5mm ropes. 

 

Hot forging the aluminium alloy has allowed DMM to create a high performance belay device that weighs just 45g, yet is robust enough for heavy use. The internal geometry is precisely machined with a subtle taper to give an optimum balance of smooth handling and braking friction. Extra friction is added by the deep V-shaped rope slots. Grooved for additional grip, they do a great job when you need to hold a fall, or when feeding out rope slowly and in control i.e. lowering a climber or abseiling. 

 

The rope slot allows easy loading and the the shape of the rear of the Mantis helps encourage "lift off" (lifting the belay device away from the carabiner) - this means it doesn't jam against the belay carabiner - so paying out rope to the lead climber is quick and smooth, not jerky or grabby.