This study will focus on how different injection needles are perceived by patients. The needles differ in design and mechanical properties, and will be tested in people with Type 2 Diabetes. The measured parameters during and after needle insertion are: penetration force through skin (measured with force gauge), pain perception (rated on visual analog scale, VAS, on a scale from 0 to 10), and skin blood perfusion at insertion site (measured with laser speckle contrast scanner). Furthermore, any skin reactions will be recorded.