The level came with a closed lock case box. Thanks to the split installment plan, I bought it. Checked the angle of 45 degrees set ideally. At 15 meters, the thickness of the beam is 4 mm at 7 meters 3 mm at 5 meters 2 mm The case is strong, nothing dangles, everything closes tightly in its place. Delivery is always on the appointed day. I recommend this seller and product to everyone.