This Stair Handrail Brackets set is made of nickel, with a satin finish. The brackets come with hardware included and are designed for use with a hex-shaped item that has a diameter of 1 inch. The interior diameter of the brackets is also 1 inch. These brackets are Grade 2 and have a closed end type. The sleeve anchor type is designed for a 1/8 inch thickness item and is 10 inches in length. The mandrel material is aluminum, and the screw size is #0. The head style is domed, and there are four holes per leaf. The rail height is 1 3/4 inches, and the grip range is 0.02-0.062 inches. This set is perfect for anyone looking for a reliable and durable solution to fastening handrails.