This floor target plate is a standard size. It has both metric and imperial units of measure for your convenience. It's a bright green color so it's easy to keep track of. The materials sharpen and the lasers point's visibility for easier reading. Features - Color: Green. - Size: 10.50X7.40X0.30cm/4.13X2.91X0.12inch. - Material: Plastic. - These green magnetic floor target plate enhances the visibility of lasers line or point. - Special reflective target film increases visibility of a green lasers line or point when working over long distance or bright sunlight conditions. - Easy to read scale with center zero in both metric and imperial units of measure. - Fix it in multiple ways: magnets for convenient attachment to metal studs, hole diameter for hook, back stand folds out to keep upright and steady on floor. - Suitable for alignment, lasers level, cross line lasers, rotary lasers, lasers measure and all green beam lasers level.