Transparent, flexible, Shore A 56. Temperature range -54 to 74°C. Tygon tubing with the longest "Flex-Life" (lifespan) when used in peristatic pumps. To FDA / USP Class VI. ISO 10993, according to REACH without phthalates.Suitable for food, drinks or pharmaceutical applications. Resists ageing and non-toxic. Resistant to many chemicals.