Bionime's Rightest™ GS550 Test Strips are made for use exclusively with the Rightest™ GM550 Blood Glucose Meter. Test Strips incorporate patented coding system that automatically calibrates the glucose meter each time a test strip is inserted, eliminating the need to manually enter a test code. The GS550 test strips incorporate patented, gold plated, nano-technology and proprietary chemistries to ensure accurate, reliable and consistent results. The large, injection-molded, plastic test strips are easy to handle and insert, reducing waste due to bent or damaged strips.