DoubleSure technology for accuracy. Proven accuracy. For blood glucose testing with the OneTouch Ultra Family of Meters and the OneTouch Ping Meter Remote. DoubleSure double checks each result for accuracy. Requires just a speck of blood. Covered at the lowest co-pay on the most health plans. In vitro diagnostic. For self-testing. 4 vials of 25 test strips. The test strip vial contains a drying agent. Made in UK.