Mammut Shock absorber
This is a very specialized peice of gear and does not need to replace all your dogbones. At what it does, it is so great. I have 4 that I use on super sketchy gear when aiding and climbing ice. The Dyneema is rad, these used to be made by Yates with standard nylon and they were super bulky. These are great. You wont want to ever use them, and when you do you will likely be crapping in your pants, but you will be really gald you have them.