NORTH COULOIR - Ice axes | Climbing Technology
AlpineDave - Make your own Leashless umbilicals (aka Double Spring)
Petzl Nomic Leashless Ice Climbing Tool : Photos, Diagrams & Topos : SummitPost.org Outdoor Gear
American Alpine Institute - Climbing Blog: DIY Leashless Ice Tool Tether/Umbilical
Will Gadd – Athlete, Speaker, Guide
Black Diamond Fuel Hammer Ice Tool - Climbing from LD Mountain Centre UK
Leash or Leashless? | ISM
A guide to ice tools for walkers and climbers
Black Diamond Reactor Ice Axe - Climbing from LD Mountain Centre UK
Leash or Leashless? | ISM
Petzl Nomic Ice Tools - Hiking in Finland
DMM Apex Ice Axe - Rock+Run
American Alpine Institute - Climbing Blog: DIY Leashless Ice Tool Tether/Umbilical
TECH MACHINE – Grivel
Leash or Leashless? | ISM
Black Diamond Fusion - Leashless Tool Review - Climbing
WHIPPY - Accessories | Climbing Technology
Black Diamond Cobra Ice Axe: Hammer | eBay
Switch – DMM
Ice tool - Wikipedia
Petzl Nomic Ice Tools - Hiking in Finland
DMM Freedom Revo XSRE Ice Axe Leash
Trango Mantis - Leashless Tool Review - Climbing
American Alpine Institute - Climbing Blog: DIY Leashless Ice Tool Tether/Umbilical
UKC Gear - GROUP TEST: Technical Ice Axes
American Alpine Institute - Climbing Blog: DIY Leashless Ice Tool Tether/Umbilical
