Tuf Gel long lasting lubricant sprays out as a clear, water thin, invisible lube. It penetrates into tiny cracks and crevices - then turns into a super slippery gel. The end result is the ability to get an ultimate friction reducing gel lubricant into areas otherwise unreachable. Tuf Gel doesn't dry out, wash away, or collect dust. Tuf Gel lubricates like no other lubricant can.