Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Simple and Accurate

I've used this jig on more than a few jobs installing drawers to ball bearing guides that I previously installed using spacers.This jig works great. It makes the job of installing your drawers a whole lot easier and faster. Just be sure to build your drawers so you have at least a 1/4" space between the drawer bottom and the stile. This jig won't work on cabinets with no stiles between the drawers. I suppose any reasonably competent woodworker could make a jig like this out of wood, but these are light weight, unbreakable and accurate.