Manufacturing materials: stainless steel artificial crystal. Product condition: high quality and brand new?Color: silver. Package: 3 pieces / set Features: Made of high quality metal material, using synthetic diamonds to be inlaid on the metal ring by glue. Paste with high quality glue and the diamond particles will not fall off. The metal ring is built according to the size of the original car air conditioner knob. Bring unique decoration to your car, shine, Bling. Installation method: 3M tape on the bottom of the product. Clean the installation site before installation and hot blow the 3M glue with a blower. Installtion The effect will be better.