BODY: 1.5 mm, 304-grade stainless steel or aluminum with electrostatic paint or anodized coating on sheet metal. APPLICATION: The mechanical butterfly turnstile operates on the pushing motion of the person passing through, without requiring any energy source. It operates only in one direction and does not allow passage in the other direction. SPECIAL DESIGN: It has a unique design with a decorative exterior appearance and smooth and silent passage. WARRANTY: 2 years. CERTIFICATES: ISO 9001:2008