Accu-Chek Aviva Glucose test strips The pack of Accu-Chek Aviva Glucose test strips are for all users of the Accu-Chek Aviva blood glucose system, Accu-Chek Aviva Nano blood glucose system, Accu-Chek Aviva Expert bolus advisor system, and Accu-Chek Combo insulin pump system. - Convenient; affordable; accessible - For the determination of blood glucose - Suitable for self-testing. - the manufacturer no longer supplies white code chips - if you have not been supplied with a black code chip which works with all the above systems (no need for a new one with each box of test strips), please contact the manufacturer for a free one - http://wcww.roche.com/products/product-list.htm?type=divdia&id=Diagnostics