2X Adjustable Grade Rod Level, Special Horizontal Bubble for Tower Ruler, Right Angle 90 Degree Level

2X Adjustable Grade Rod Level, Special Horizontal Bubble for Tower Ruler, Right Angle 90 Degree Level Made of aluminum, sturdy construction, durable to use. Metal horizontal bubble for more accurate measurement. Fits round and rectangular grade bars from 1inch-1.25inch diameter. Widely used to adjust the factory machinery and equipment level, adjust the special equipment level, adjust the haeundae level, adjust the level of medical-equipment, office desktop level adjustment. Colour:Orange Material:aluminum Package Contents: 2 x Centering Pole Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.