Size: 32 oz. The better solution- Acetone products can smear the streaks around, and can damage the gelcoat on fiberglass boats. Spray on Black Streak Remover, let it sit for a few seconds, and just wipe off the streaks. Great on fiberglass, metal, and painted surfaces. Also good to remove spilled teak oil from gelcoat. Contains no harsh acids or alkalis. Use it for other tough cleaning jobs, such as bathrooms, tubs, etc. Nontoxic, nonflammable formula. Four times stronger than most sprays. Cleans grease, oil, scum stains, fish blood, etc. Great for black streaks on hulls and vinyl. Biodegradable. Quart. Made in U.S.A.