Feature:_x000D_ _x000D_ The products are made of ABS and acrylic materials by special process. _x000D_ The product is as clear as crystal. It's very beautiful. _x000D_ It is very easy to see the direction of measurement. _x000D_ Level bubbles are very compact and can be carried around. _x000D_ It is suitable for horizontal calibration of balance, electronic scale, camera platform and other equipment. _x000D_ _x000D_ Specification:_x000D_ Material: ABS Plastic_x000D_ Measure range: 306mm_x000D_ Accuracy: 10_x000D_ Product dimension: 1.5*0.8*0.5cm / 0.6*0.3*0.2in_x000D_ Weight: 8g / 0.3oz_x000D_ _x000D_ Package list:_x000D_ 5 * Level Bubble_x000D_ _x000D_ Note:_x000D_ The actual product color may deviate from the photo due to light._x000D_ There may be a slight deviation in the measurement of product.