PetTest Advocate Twist Top Lancets are an efficient way to get blood samples from your diabetic pet, so you can keep a watchful eye on her blood glucose levels from home. They're easy to use and make taking blood samples more comfortable for your pet. Plus, they are compatible with most lancing devices, including those from other glucose systems. PetTest Advocate Twist Top Lancets may also help reduce “short samples,” which can lead to wasted test strips and the inconvenience of retesting.