SHINWA 65038 Aluminum Cutting Rule EX 2.5 m/shakuStainless steel edges prevent damage from a cutting blade Fully covered rubber stopper Elastomer resin handle makes it easy to hold (models with handle) Suitable for carpentry using shaku graduations Double left Reference Point Model: When either the shaku or cm scale is on the upper level, that graduation's reference point reads from the left side edge Light, durable, rust resistant Bold, easy to read graduations