Then The Chainsaws Rule accessory is perfect for you. Why take time to measure before you cut... when you can measure as you cut? With the chainsaws rule you can multi-task...measuring and cutting simultaneously, so instead of your buddies measuring with a stick and hatchet, or spray paint, they can be loading the truck. The Chainsaws Rule is quick, accurate and easy to use. It is light weight but sturdy, as well as quick and easy to install, it takes just seconds to snap it on... and you're ready to go. What size pieces of firewood do you need? The adjustable telescoping bar is marked in inches to enable precise cuts every time, 6" up to 30". The Chainsaws Rule telescopes in when limbing a tree, so it's out of the way. It can also flip to allow you to cut the log from the other direction. The right length - every cut... makes for an even stack of firewood! Out of all the chainsaw accessories on the market, this is the best measuring device you can buy! Make the investment today and save yourself time & money!