Features: 100% brand new and high quality. Ball wheel and brush roller kit is a perfect replacement compatible with vacuum cleaners. It is easy to install and maintain, and can restore your vacuum cleaner to like-new performance. For optimal performance, it is recommended to replace the ball wheel and brush roller every 6 to 12 months. [Spherical Wheel Accessory] Features a unique spherical design that allows the vacuum cleaner to be more flexible and agile on the floor, turning easily. [Roller Brush Accessory] The roller brush bar is made of an innovative fiber material that penetrates deep into the carpet fibers to easily pick up dust, long hair and pet hair, while protecting the carpet pile from cleaning. Perfect for cleaning a variety of floor types such as carpet, wood, and tile. Specification: Ball wheel and roller brush replacement kit for newer V6 DC59 motor heads and older V7 motor heads, for motor heads No.966085-01 and No.967157-01 which 4 hongs on the drive shaft. Color: