This rj11 to rj45 adapter is made of premium material, which can withstand long-lasting use. Features the ABSandcoppermaterial, which has high durability, not easy to deform. Fine workmanship, ensures practicality. This rj11 to rj45 adapter will make network conversion easier and smoother.Features-Color:Black-Material:ABS, copper-Size:4500.00X1.00X0.10cm/1768.50X0.39X0.04in- Phone RJ11 6P4C female to Ethernet RJ45 8P8C male adapter.- Durable materials help you maintain great signal transmission and sound quality.- Easy to use, connect analog phone equipment (telephone, fax, caller ID) via Ethernet jack.- The joint connection is firm, the contact is stable, and the transmission efficiency is higher.- Exquisite workmanship, reasonable structure, professional and practical, can bring you convenience.Packing list2 x rj11 to rj45 adapters