Kapro Eagle Box Levels feature 3 solid acrylic shockproof highly visible Optivision Red vials, with a finely milled surface, wall-grip, shock-absorbing end caps and accuracy of 0.5mm per meter. The set contains a 600mm, 1200mm and 1800mm level, 250mm Cast Torpedo level and a heavy duty padded bag with strap. Optivision Red features extremely visible red bubble edges for true placement between reading lines and maximum vision in both bright and low light situations, with a high contrast between the bubble and vial liquid, and tilted angle of the vial for a direct line of sight for faster, more precise levelling results. Reading lines are painted inside the vial for guaranteed precision. It is UV resistant, with no chemical additives to fade overtime, so the vial will always maintain its contrasting colour for enhanced visibility.