Description: Quality Pure copper 24K black nickel plated with great finish. Diameter: 25mm, thickness: 5mm. Bright, easy to use. Reduce booming, protect floor surface from scratching. Suitable for most of pointed spikes, Hi-Fi, speakers, turntables, computers, printers and other sensitive equipment. Less noise. Package Includes: 1 Piece Speaker Spike Isolation Stand Cone Base Pads