Sakrete Maximizer is a high strength, high-yield concrete that provides 67% more coverage by volume than typical concrete mixes. Maximizer Concrete is a proprietary formula that yields more coverage than standard concrete mixes. Maximizer features a specially manufactured aggregate material and higher volume of cement. Size: 40 lb 5500 psi strength 40% stronger then regular concrete Yields 67% more coverage More uniform, easy-to-mix blend Yield 1 cu.ft. Use for posts, sidewalks, steps, balconies, benches, countertops and statues Packaged in paper bags.