Stop tuning between every song! Music Nomad's TUNE-IT is your personal guitar tech to stay in tune longer & reduce string breakage. Our pro strength biodegradable formulation is like no other & contains anti-wear, anti oxidants & anti corrosion additives fortified with PTFE. Odorless, non-staining & silicone free. Apply to Nut Slot, Bridge, Saddle and String Guides every string change. Most importantly, it does not affect the sound or sustain of the strings. Great for moving parts, such as open tuners & tremolo bars. A little goes a long way to help you sound the best. Ideal for Nut Slots, Bridge, Saddle, String Guides and Any Moving Parts Helps you Stay in Tune Reduces String Breakage Reduces Friction & Wear Eliminates "Ping" Sounds Petroleum & Silicone Free Small Fine Tip Applicator Included to apply TUNE-IT in any hard to reach or tight areas Biodegradable, Odorless, Non-Staining Non Melting, Water & Steam Resistant Protects against Rust & Corrosion Low Coefficient of Friction Specially designed Syringe like Orifice Distributes Gel Evenly and Finite Perfect for Guitar, Bass, Mandolin, Banjo, Ukulele