Chief CPA263 monitor mount accessory

Chief CPA263. Product type: Extension kit, Product color: Black, Maximum weight capacity: 499.8 lbs (226.7 kg). Height: 4.87" (123.8 mm), Diameter: 2.37" (6.03 cm). Package weight: 20.8 oz (590 g). Quantity per pack: 1 pc(s)