Uxcell US Telephone RJ11 6P4C Female to Female Plug Convertor Adapter for Landline Telephone Product Name : Telephone Inline Coupler Adapter;External Material : Plastic Type : US RJ11 Female to Female Plug; Total Size : 3.6 x 2.2 x 1.6cm/ 1.4'' x 0.86'' x 0.63'' (LWH) Color : White Weight : 8g Package Content : 1 x Telephone Inline Coupler Adapter