Made of solid stainless steel, then brushed, creating a brushed nickel appearance. Standard 3 1/2" size will fit any standard kitchen sink drain. Features an extra long 2 1/2" screw, to work with thick sinks like the ones made of fireclay. It will still also work with thin sinks like stainless steel. Elongated grooves block large food particles and still let water drain smoothly. Easy to install. Constructed of stainless steel top with an ABS plastic base.