Superslick's AlphaSynth Key & Linkage Oil is a high quality, long lasting lubricant designed to be used on woodwind keys or linkages, ball joints or hinges on brass instruments. The needle-point tip applicator ensures accurate placement of small drops, even into small openings on an intricate instrument. It also provides outstanding wear, rust and corrosion protection along with oxidation stability. Most importantly, Alphasynth is completely safe for classroom use. Made in Elkhart, Indiana, USA. 0.5 ounce / 15 ml bottle with needle tip.