Plastic material, sturdy in use. It won't scratch the floor and furniture. With exotic design, it is simple to collect the hair and small garbage. Side brushes are clean to remove and replace as part of routine maintenance. Practical aspect brushes is suitable for FC8796 FC8794 FC8792 Robot vacuum cleaner. Specification: Colour:Blue Material:PC Size:diameter 15/6 Package Contents: 2 * Side Brush Only the above package content, diverse merchandise aren't included. Note: Light and diverse displays may cause the color of the article within the picture somewhat varied from the genuine thing. The measurement allowed error is +/- 1-3cm.