Features: Use pure copper, good-looking, high gloss, anti-scratches. Can be used for hifi speakers or speaker frame. It can be put under the speaker, or under the shock board and anti-shock frame, the shar p end point to the ground, can minimize the harmful vibration. Can eliminate the pollution between the ground and the speaker, get the sound effect.Designed with height fine-tuning balancing nut. : Color: Silver Material: Copper Size: . 11 * 60 mm / 0.43 * 2.36 inCH Package Included: 4 x Speaker Spike 4 x Base Pad Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.