Various size from 1 / 8 " to 1 / 2 " square, with engraved size markings for quick and accurate measurements Suitable for woodworkers and enthusiasts a tool for setting fence and cutter accurately your woodworking with this set of height gauge tool, offering convenience and efficiency in your Perfect for woodworking projects that demand precise measurements, these block consistent professional ensures durability without causing damage to and routers during use, Manufacturer: Bwuikim