Day and Night Zebra Roller Blind without Drilling 55 x 170 cm Dark Gray Easy to Install with Clips for Window or DoorZebra Day and Night Roller Blind without Drilling 55 x 170 cm Grey, Adjustable Light The blind is made up of alternating transparent and opaque strips. You can block sunlight by rotating the chain. The color is darker, the shading rate is higher. Translucent fabrics soften light that can block the sun and protect your privacy. Measurement It is recommended to add approximately 2cm width on each side, but the largest width cannot exceed the handle, in order to use normally. The width indicated is the total width of the blind. The width of the fabric is approximately 4cm shorter than the stated size. The recommended width = Width of your window + 4cm + 3~4cm. Example: The width of the window is 47 cm. It is recommended to purchase 47cm + 4cm + 2cm + 2cm = 55cm. + productMounting without drilling The blind can be installed without drilling using clips to protect your window