Product Name : RJ45 F/F Inline Coupler;Type : Female to Female RJ45(8P8C) Size : 3.7 x 2.2 x 1.7cm / 1.5" x 0.9" x 0.67"(L*W*T));Color : Off White Material : Plastic, Metal Weight : 147g Package : 20x RJ45 F/F Inline Couplers The RJ45 Inline Coupler allow you to extend the length of two Category cables quickly and easily. Designed to provide a female-to-female connection.