Feature: Can be used for HiFi speakers or speaker It can be put under the speaker, or under the shock board and anti-shock It's end point to the ground, can minimize the harmful vibrationCan eliminate the pollution between the ground and the speaker, the sound effectAppearance is absolutly classic and high SpecificationModel Number: M23*20 length of the Nail: 20mmFoot pad diameter: 23mmFoot pad height: 4mmProduct height(Nail and pad): 23mmMaterial: Aluminum colour: BlackPackage Contents:8 x Speaker Spikes8 x baseOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.