PROTECTION - Ear Gear protects hearing aids from dirt, sweat, moisture, wind YOUR PERFECT CHOICE - Ear Gear is used by hearing aid wearers of all ages, at work, on the beach, during gardening, while playing sports, and travelling FITS Micro - fits hearing aids up to 1, Mini - fits hearing aids up to 1.25, Original - fits hearing aids up to 2, and FM - fits hearing aids up to 3 - See measuring image MODELS & COLORS Ear Gear is available in 8 fashionable colors, in mono, binaural, and eyeglass models, with and without a stretch cord and locking clip