[Improve the sound quality] Installed under the spikes on the floor speaker, it can protect the hardwood or tile floor from being scratched and damaged, while allowing the spikes to separate the speaker box from the floor, thereby improving the overall sound quality.[Balance] Designed with highly-adjustable balance nuts. Suitable for speakers, amplifiers, CD DVD players, turntable recorders, cases, musical instruments, etc.has better effect, high-grade electroplating, beautiful, , and not easy to be scratched.[Loading] Load capacity of 4 studs is approximately 100 pounds (45kg)Function: colour:GoldMaterial:Aluminum alloysize:Feet height: 25MMFoot nail diameter: 28MMNon-slip stickers: 3MMPackage Contents:4 x shoes feet4 x Slip mat4 x double-sided tapeOnly 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.