Compatibility: Compatible with Florabest FHEHS 900 A1 hedge trimmer. Dimensions: Our carbon brushes are 16mm in length, 8mm in width, and 6mm in height.Note that these brushes may need to be shortened by 1-2mm, so if you are willing to do this it is only a few seconds modification. Material: These carbon brushes are made of carbon and metal. Easy to install: Direct replacement without adjustment, perfect compatibility, high reliability. Used to replace damaged or aged parts to keep your motor running normally., Manufacturer: eMagTech