The tablets are also the latest blister pack technology enabling a simple pop action to remove the tablets. - It is important that you DO NOT TOUCH the individual test tablets once they have been removed from the blister pack, as the contaminants on your fingers could interfere with readings. - Tablets include:20 x DPD No.120 x Phenl Red20 x Cy - A-Test tablets10 x ALK-Test tablets10 x CAL-Test tablets