GLUCO-CARE Safety Lancets are designed for safety, comfort, and ease of use. They are contact activated, which means they automatically activate when the main housing is pressed against the skin. They needle retracts automatically, reducing the risk of accidental needle sticks. The lancets are 21G x 1.8 mm in size, which is suitable for most diabetics. They come in a box of 100, and are non-returnable, making them a cost-effective choice for those who need them on a regular basis. The lancets are also designed to be comfortable to use, with a thin needle point that minimizes discomfort during insertion. Overall, GLUCO-CARE Safety Lancets are a reliable and safe choice for diabetics who need to test their blood glucose levels.