RCA KEYSTONE INSERT with white center jack joins cables with RCA plugs; Connects equipment with RCA ports like a subwoofer, stereo receiver, or other equipment with RCA component audio and video ports; Fits a standard opening in a wall plate for keystone jacks RCA COUPLER with female ports on both sides connects to an RCA cable concealed behind the wall; Connect a subwoofer to the perfect location near an available wall plate STURDY SNAP-IN CONSTRUCTION of feed-through RCA keystone provides a secure connection; Re-usable keystone jack inserts can be easily disconnected and relocated when upgrading or redecorating; Gold-plated RCA connectors provide a reliable connection and distribute authentic audio and video Quick snaps in installation and easily fits standard keystone wall plate, patch panel or surface box; Compatible with nearly all keystone style wall plates COST-EFFECTIVE 10-PACK provides enough inserts to connect 10 sound system component cables Colour:Yellow+white+red Material:Plastic + Metal Package Contents: 10 x RCA Keystone Jack