uxcell RJ11 Duplex Jack Telephone Cable Adapter Coupler 2 Pcs Product Name : Phone Duplex Jack;Material : Plastic, Wire Components Type : 1 Male RJ11 to 2 Female RJ11;Total Size : 3.6 x 2.6 x 2.4cm/1.4'' x 1'' x 0.9'' (L*W*H) Color : Beige Weight : 14g Package Content : 2 x Phone Duplex Jack