D'Addario Planet Waves Stereo Female 1/4" Coupler
For your consideration, Garrett Park Guitars presents this D'Addario Planet Waves Stereo Female 1/4" Coupler.
From the packaging: "Perfect for extending cable lengths, the D'Addario stereo female 1/4" (6.35mm) coupler is ergonomically designed with a durable polymer overmold for extra protection and easy gripping. D'Addario adaptors are fully shielded and have 24-karat gold-plated contacts for maximum conductivity and corrosion resistance.
Note: not recommended for use with speaker cables."