1) Material: cold-rolled steel, plastic coated 2) High definition peephole 3) The through window concealed in the door is both practical and beautiful 4) Stainless steel doorsill will never get rusty for long-term use 5) Soundproof 6) Bright, lustrous and durable appearance 7) Environmentally friendly Specifications: 1) Outer size (H x W)mm: 1930 ,1970 , 2050 860 , 900, 960 2) Thickness of door leaf: 50, 70, 10mm 3) Direction of opening: left and right 4) Various patterns, colors and sizes available upon request