Tired of cheap flimsy domes falling off and getting stuck in your ear canal? Our medical-grade Resound replacement ear domes deliver stable, comfortable all-day wear. WIDE COMPATIBLE HEARING AID DOMES: These replacement ear domes fit GN Resound Omnia, ONE, LiNX Quattro, LiNX 3D, ENZO Q, Key slim tube & standard BTE tube devices; also match Jabra and Beltone RIC and BTE hearing aids perfectly STANDARD SMALL 5MM SIZE: 5mm = 0.19 inch medium Resound domes suit small ear canals, ideal universal fit size for most users replacing worn hearing aid tips regularly PRESSURE-BALANCING DESIGN: Built-in precision vent blocks liquid earwax to protect hearing aid receiver, balances ear canal air pressure to eliminate stuffiness and ear pressure for all-day comfortable wear of GN Resound hearing domes SAFE LIGHTWEIGHT MEDICAL SILICONE: Soft medical-grade silicone hearing aid domes weigh only 0.1 g each, fit ear contours tightly and stay secure during exercise and active outdoor lifestyles VALUE 24-COUNT PACKAGE KIT: Bulk set includes 24 pcs GN Resound hearing aid domes, 1 multi-function cleaning brush and 1 portable storage case; Replace domes Monthly for Better Ear Hygiene & Stable Sound Performance. One Purchase, Lasts Over 1 Year!