Features High Visibility Design: Green color with centering black lines offers clear resolution from all angles, ensuring easy readability. Accurate Leveling Indicator: The bubble inside the circle confirms levelness when positioned at the circle’s center, providing leveling guidance. Enhanced Clarity and Precision: Crafted from high optical clarity material with three-line design for accurate measurements, ensuring high transparency and improved precision. Convenient Pocket-Sized Tool: Handy small size allows for quick and convenient use anywhere, ensuring portability and accuracy on-the-go. Versatile 3D Printer Compatibility: Designed as an auxiliary tool for 3D printer leveling detection, making it suitable for a range of 3D printer models. Features: 1、Green color, centering with black lines, clearly visible resolution from all sides, easy to read. 2、The bubble inside the circle will tell that the object is level as the bubble shows in the middle of the circle. 3、High optical clarity material, high transparency, three？line design, more accurate measurement. 4、The handy small pocket sized is for quick use anywhere, makes more convenient and accurate. 5、Mini level ruler auxiliary tool platform balance ruler is suitable for 3D printer series leveling detection. Specification: Item Type: Level Bubble Ruler Material: ABS Product Function: Used for 3D printer leveling detection Package List: 2 x Round Ruler 2 x Cylindrical Ruler 2 x Cuboid Ruler Package List 2 x Round Ruler 2 x Cylindrical Ruler 2 x Cuboid Ruler