The "sharkbait PEX 10 pack 1" elbows" are a set of 90° elbow fittings designed for PEX piping systems. Made from durable material, these elbows are commonly used in plumbing applications to create secure connections at corners or bends in the piping layout. The pack includes 10 elbows, making it a convenient option for projects requiring multiple connections. The "sharkbait" brand likely signifies a reliable and trusted manufacturer in the plumbing industry, ensuring quality and performance in the fittings provided.