#304 stainless steel: Both durable and safe, this sieve is made of food grade stainless steel and is specially formulated for food safety Double sieve: With two sieves for maximum filtration, the first screen removes large particles and the second screen refines the honey to a smooth and light-colored product. Fine filtering: The top screen is 18 mesh (100 micron) filter followed by a fine 25 mesh (710 micron) bottom filter. Sized right: The 10” diameter strainer has adjustable arms extendable to 17” and designed to fit over a standard 5-gallon bucket but can be adjusted for other sizes as well. This Honey Keeper Double Sieve Honey Strainer is essential for all modern beekeepers. This #304 stainless steel product is engineered as a food grade strainer. It is durable and easy to clean. The double strainer design first removes large particles with the 18mesh (100 micron) top strainer and filters it down to the desired results with the fine 25 mesh (710 micron) bottom filter. Honey Keeper provides reliable beekeeping supplies designed to support all colony habitats and promote long-term hive health.