Pole mount bracket kit: Ø25cm. Dimensions (Bracket): Bracket: 241 x 161 mm. Suitable for Housing103 model. Supplied with: Stainless steel strap (Ø 4’’ ~ 6’’) x 3; M8 screw (30 mm) x 4; M8 screw (25 mm) x 4; M8 screw cap x 4; Split washer x 4; Plain washer x 4.