Precise Angle Marking: Accurate angle marking at 15° 30° 45° 60° and 90° ensures in all woodworking tasks. Quick Adjustment Knob: Rotating knob allows fast angle adjustments, keeping measurements consistent and secure during work. Durable Aluminum Construction: Lightweight aluminum alloy design combines portability with longevity for carpentry projects. Non Slip Stable Design: Non slip markings provide stability on various surfaces, producing accurate measurements every time. Built in Bubble Level: Integrated bubble ensures quick and clear calibration during alignments for professional results., Manufacturer: ANGGREK