niceeshop(TM) 1 Set(7Pcs)-Black 49-52-55-58-62-67-72-77 MM Camera Lens Filter Step Up Adapter Rings Retracted Size:10x4x2.5cm ; Fully extended Size:2.5m (8feet) Support Network Speed:10 to 100 Mbps automatically Cable Comes with 8 pin RJ45 connectors on each end Just pull on each side to extend and push button to retract with different lengths Connect PC or laptop for network connectivity