Memory Foam Earphone Tips Foam Tips (Fits 5mm Diameter Nozzles, 3 PairsBlueLight Gray, Red) KE-01 3 Pairs: Blue 1 Pairs, Light Gray 1 Pairs, Red 1 Pairs. Memory Foam eartips for optimal comfort, lined with a high density elastic for secure attachment. Fits 5mm nozzles. PLEASE NOTE! THESE WILL NOT FIT ALL HEADPHONES. If you are unsure of your earphone nozzle size, please consult your earphone manufacturer or website. Superior noise isolation. Simple packaging