The Mantis Shadow HMS Belay Set from DMM comes with a Shadow HMS Screwgate Carabiner and Mantis belay device. Both pieces are lightweight and classic examples of their categories. 

The DMM Mantis is an incredibly lightweight belay device for use with either single or half climbing ropes, perfect for all types of climbing at the wall/crag. 

The DMM Shadow HMS screwgate is a mid to large sized HMS carabiner, with a surprisingly lightweight construction - perfect for belaying. With a short gate, to maximise gate opening, and deep/wide top basket, the DMM Shadow can easily handle three clove hitches (<9.5mm rope), also making it a superb rigging carabiner.

Mantis Specification 

• Guide Mode: No
• Lock Mechanism: Manual
• Number of Ropes: One or Two
• Handles Ropes from 7.5 to 11mm
  
• Weight: 45g

Shadow HMS Specification

• Extra short gate – to accommodate two clove hitches
• Lightweight with high strength
• Screwgate locking system
• Gate opening: 20mm
• Dimensions: 71 x 96mm
• Weight: 56g