Features: Can applies to window rolling shdes, vertical blinds, roman shade, horizontal blinds, and so on. This blinds replacement part contains 1pc of automatic control winder box and 1roll of 5meters webbing strap. Safe for kids: Provide safety device, safe for kids and pet. The winder box and strap is craft with high quality plastic and cloth, which is durability and stable. Easy to use: simple to install and take off, which can repeatedly applies for long time. Specifications: Component: Plastic Color: White Strap Width: approx. 14mm/0.55in Strap Length: approx. 5meter/196.85in Box Size: approx. 172.5x125x23mm/6.79x4.92x0.91in Quantity: 1 pc Package Includes: 1 x Rolling Shutter Winder Box with Strap note: Please allow 1-3cm error due to manual measurement. please make sure you not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color the item.