Detailed Product Description 1,,High dielectric Constance2,Low temperature coefficient3,High quality factor4,Wide range of resonant frequency5,Sizes: 2x2mm,3x3mm,4x4mm,5x5mm,6x6mm,8x8mm,10x10mm,12x12mm,20x20mm6,Materials: Er=21+/-1(A Material),Er=37+/-1(B Material)Er=90+/-2(C Material)7,Frequency range:400MHz~5000MHz8,Custom-design is welcome.