I have worked In the construction industry for 40 years and I have climbed ladders thousands of times. When I conceived the idea for this product I knew it would take a while to perfect it. I have been using this product on my job for quite a while and have perfected it to be the most useful and safest item ever used with a ladder. It turns an extension ladder into the safest and most useful ladder you will ever use. The ladder becomes a multi-use ladder eliminating the need for other ladders.