Here's a diagram of a typical harness system:
X
|
|
|
?-C-L-H
|
|
|
X = attachment point
| = rope
C = carabiner
L = shock-absorbing lanyard
H = harness
What's the device called that allows you to slide up and down the rope, but it bites into the rope when you fall? I've found multiple products that accomplish this, but perhaps one is better than the other:
- rope grab
- self-retracting lanyard/lifeline
- belay device
- some sort of knot
Money is mostly unimportant. I'm more worried about the solution that is least cumbersome and safest.