• Suitable for wooden, glass and aluminium etc, all kinds of door. • Max. opening angle in each direction: 120°. • Controllable dosing angle: 90°-25°-0°. • Inside the frame: High can be adjusted within 4mm, Width can be adjusted with 5nni between left and right, length can be adjusted within 12mm. • Opening of stopping position: 90°. • It operates normally from -30° to 45°. • Pass the quality test of 500,000 cycle.