This was a real disappointment. I expect more from this company. Paying $80 for a torpedo level would be okay if it was perfect. After opening the spirit level and zeroing the 360 degree scale and placing it on a flat surface, the bubbles of the bubbles did not match. I had to rotate it 2 degrees to fit the installed vial. I give it 2 stars because the kit fits my four foot 16 inch Stabila level.