PacTool Gecko Gauge LP Siding Tool, The Original Home Siding Installation Kit - For Use with 3/18 Inch LP Engineered Wood Siding, Includes 2 Gecko Gauge Clamps for One Person Installation

Works just fine. With these I was able to get 2/3 of my house sided over the winter just by working on the relatively few decent days we had. Other reviewers have complained they are made of plastic, so what, a lot of things are made of plastic. I dropped these a couple of times from 20 feet up on a ladder on concrete with no damage. Are they perfect? No nothing is but they do work and make it possible for one person to install siding. They did fall off a couple of times but it was because I didn't have the clamp set right. Again so what. They do work.

I don't know how anyone can side their home without these. They are easy to use and make the job a whole lot easier to accomplish while you are wrestling air tools, a measuring tape, and a level.

Great fast service.

These things make installing Hardie board a breeze but I'm not sure one pair will do an entire house. We'll have to see

Works perfectly! They are 100 times better than homemade gauges, very impressive tools.

A great product! It can clamp onto the siding board without forcing the support arm away from the surface and opening up a gap so wide the next board falls into it. Like the other siding support clamp I bought. Also, both the clamp adjustment and the support arm height are can be set at any value within the range instead set steps and increments.

Works great. Great for the price

A must have for siding. Simple design, easy to use. Made my project easier and cleaner