12 pair Black, Size Medium, Replacement Earphone tips / earbuds plus bonus set of backup earphones! (model/colors vary). 100% silicone rubber replacement earbuds for in-ear earphones PLUS bonus promotional earphones with excellent sound quality for backups! 4mm connector hole for ear canal fitting earphones with connection size of approximately 11/64" (4.25mm) up to 1/4" (6.5mm) Fits select earphone models by AKG, Atomic Floyd, Audio Technica, Audiofly, Auvio, AKG, Altec Lansing, Beats, beyerdynamic, Brainwavz, Creative, Coby, Denon, Fischer Audio, Grado, House of Marley, iBeats, iLuv, ifrogz, Jabra, JBL, JH Audio, Jlab, JVC, KEF, Kicker, Koss, LG, LG Tone, M-Audio, MEElectronics, Panasonic, Philips, Plantronics, Puma, Razer, Rocketfish, Scosche, Skullcandy, Samsung, Sennheiser, Skull candy, SMS Audio, Sol Republic, Sony, Ultimate Ears, V-moda, and many others.