👍The brush head is retractable,and the brush head can be retracted when not in use to better protect the brush head. | 👍The handle is made of ABS and the brush head is made of wool. | 👍Suitable for computer keyboards,car interiors,or most electronic devices. | 👍Soft wool brush head,no need to worry about hurting your electronic devices when using. | 👍If you are not satisfied,we provide a 100% return or exchange refund service.