Retain the slim design of the new Nokia Lumia 640 and manage your keys efficiently with this combo of blue mobile back cover and yellow keychain, which is presented by the well known brand of Winsome Deal. Made out of premium quality plastic material, it offers great protection and is perfect for the safety of your device. Moreover, it fits perfectly in your hands and makes the phone feel so comfortable and easy to use. The keychain helps in dimensional accuracy and stability of your bike or car keys. The famous brand is known for its high quality products to provide customer satisfaction. Comfortable and light weight, it is accessible to all buttons without having to remove the case.