Because you always need absolute accuracy in your carpentry, this is the tool for you. Constructed of wood and metal, it is and very strong and durable. This meter square will be your constant companion while your build. It's 5" long and will fit into most any tool box. 5" Long - 45 degree angeled - common angle used by carpenters to make joints Wood and metal construction for durability and long lasting use Compact and easy to carry in your toolbox for when you need it Accurate - practical and desirable to measure and mark mitre joints with great accuracy Professional carpenter quality