Specifications:- Overall Dimension(LxWxH) 5 7/8" x 3 3/8" x 2 3/8" (15 x 8.5 x 6 cm)- C Clamp Opening 1 1/2" (3.8 cm)- Fits Fence Width Up to 1 1/2" (3.8 cm)- Pole Clamp Opening 1 9/16" (3.9 cm)- Fits Pole Diameter 7/8" to 1 1/4" (2.2 to 3.2 cm)- Material Galvanized Steel- Net Weight 0.9 Lbs (0.4 kg). Package Contents:- 2x Mounting Brackets- 2 Sets of Pole Clamps- 1x Manual