Uxcell a15020900ux0039 M8 Air Compressor Rubber Vibration Mount Isolator 30mm x 30mm, Metal Product Name : Rubber Vibration Mount; Male Thread Size : M8 x 23mm(Dia.*L) Female Thread Size : M8 x 10mm(Dia.*L);Rubber Size : 30 x 30mm /1.2" x 1.2" (Dia.*H) Material : Metal, Rubber; Color : Black, Silver Tone