Accu-Chek Instant Strips are blood glucose test strips designed for use with Accu-Chek Instant and Instant S blood glucose monitoring systems. Each box contains 50 test strips for accurate blood glucose determination and self-testing. These test strips are manufactured by Roche and are specifically compatible with Accu-Chek Instant and Accu-Chek Instant S meters only. They provide reliable blood glucose measurements for diabetes management and self-monitoring. The strips should be used according to the meter's instructions for accurate results.