Jabra Original OEM Multi Color Eargels for Jawbone Era, Shadowbox, Smokescreen, Midnight and Silver Lining Bluetooth Headsets Includes 1 each Small, Medium and Large. One Side. Discreet, Ear Gels. Channels sound directly into ear canal. Multi Color Provides hours of comfortable wear. Helps provide clearer calls, less external noise. Universally Compatible. Compatible with the Jawbone ERA Series - (Shadowbox, Smokescreen, Midnight and Silver Lining) Ear Gel Installation/Usage Suggestion: For a better and more comfortable fit, insert the smallest original Jawbone Ear Bud first followed by the Jabra Ear Gel of your preferred size - Bluetooth Headset is NOT Included.