FLAT ROLLS FOR STERILIZATION BY STEAM OR ETO Flat rolls consist of transparent, polyester-polypropylene film coupled to medical grade paper which permit steam and gas penetration during sterilization. Steam and gas indicators provide clear colour changes when exposed to sterilization process. Each roll is 200 m long. • Type: Flat roll • External: (m x mm): 200 x 50 • Internal: (m x mm): 200 x 36 • Minimum order: 8 rolls