PB Blaster is a superior penetrating oil. Used to get those hard to remove nuts, bolts, pipe threads, lug nuts, you name it it will penetrate and help with the removal. PB Blaster frees everything faster then other leading brands. Rust, corrosion, squeaking or sticking this product will solve the problem. This stuff is great...Just spray in on, wait a few minutes and then break free a previously stuck bolt. Made in the USA this product is something we are proud to sell. Can holds 11oz.