They are perfect both for the construction of hygienic bottoms and feeders. They provide adequate ventilation, thus inhibiting the development of mold. Aluminum mesh does not corrode and is resistant to oxalic and formic acid. The mesh opening does not change under pressure! Made of high-quality 1050A H24 aluminum according to DIN 791 standard. Appropriate rolling makes it safe for bees. The mesh allows you to control varoza. The mesh is sold in a roll 370mm wide and 420mm with a length of 10 meters.