Product Name : Ferrite Core Filter; Type : Ferrite Core Noise Suppressor * External Size(Approx) : 2.5 x 1.25cm / 1" x 0.5"(L * D); Fit Cable Diameter : 5mm / 0.197"" * Material : Plastic(Housing), Ferrite ( Core); Color : Black * Net Weight : 40g * Package Content : 5 x Ferrite Core Filters