Unger Professional LockOn Stiff Non-Scratch Swivel Grout Brush

Stiff, non-scratch bristles for grout and corner cleaning. Use on pole. Use LockOn poles with LockOn attachments for anti-rotate connection. Matching blue threads click in place for a secure, no-spin connection. Attachment won't come off pole until you press both buttons to release. Poles and attachments work with all universal threaded attachments and poles.