Thank you for showing your interest in Sure Step Glucose Control Solution from Lifescan (70). The Sure Step Glucose Control Solution is a product of Lifescan and is thereby made of the highest quality. If you have any questions regarding Sure Step Glucose Control Solution or any product in Lifescan (70), please contact us. Our experienced personnel will answer any questions you have about Sure Step Glucose Control Solution. Also, if you are interested in purchasing large quantities of Sure Step Glucose Control Solution or any Lifescan (70), please contact Customer Service.