Gunook- Tool Belt Accessory- Tool Holder The Gunook is secured by your tool belt, and stays on your tool belt when you remove your tool. The Gunook locks in the open position allowing you to release your tool without looking. Safely secure your tools on a Gunook for use on ladders, roof tops and other precarious situations. No more stooping or bending picking up tools off the ground, a roof or a ladder rung. The Gunook will last a lifetime - no screws, rivets, plastic - all metal.