Heavy Duty Brass Sink Strainer fits sinks from 3 1/2 to 4-inch openings. Chrome Plated with a solid brass body gives you the perfect choice for your next kitchen plumbing project. Designed for long lasting reliable quality and durability. ⚠ California Proposition 65 Warning: This product is known to the state of California to cause cancer, or other reproductive harm. p65warnings. ca. gov. Heavy Duty Sink Strainer with Chrome Plated Solid Brass Body: Fits sinks with 3 1/2" - 4" opening Chrome plated solid brass body and brass nut 4 1/2" flange with brass nuts Rolled edge basket with ground joint seal Heavy duty