TOOGOO(R) 10 Pcs UF90B Clip-on Ferrite Ring Core Black for 9mm Diameter Cable Product Name: Ferrite Cable Clip Model: UF90B; Fit for Cable Diameter: 9mm/ 0.35" Size: 19 x 17 x 34mm/ 0.74" x 0.66" x 1.33" (W * T * L) Color: Black;