Specifications Brand KZModel KZ FT01Material High Density Memory FoamColor BlackSizes Available Small 11mm Medium 12mm Large 14mm Compatible with Most in ear earphones with nozzle diameters of approximately 4 8 6 4mmFeatures 1 Superior Noise Isolation Effectively minimizes external noises allowing for an undisturbed audio experience 2 Sibilance Reduction Designed to reduce harsh treble spikes and resonance in the mid high frequencies for a smoother sound 3 High Quality Memory Foam Conforms gently to your ear canal and expands with body heat providing a secure and comfortable fit 4 Medical Grade Antibacterial Coating Protects against bacterial contamination enhancing both comfort and hygiene 5 Easy Custom Fit Available in three different sizes to ensure the best fit for your ear shape and size Package Include 1 x Pair of Small Size Ear Tips 11mm 1 x Pair of Medium Size Ear Tips 12mm 1 x Pair of Large Size Ear Tips 14mm