Bayer Microlet Lancets are sterile lancets specially designed to work with the Microlet 2 lancing device to check the blood glucose level. It has an endcap dial to adjust the depth of puncture and it can be adjusted accordingly for example you can puncture gently as well as make a nice puncture/poke. People who have used Bayer Microlet lancets in the past praise the product. The Glucomen lancing pen having an adjustable end cap is very successful product with the meter devices. Each pack of Bayer Microlet Lancets contains 100 single use sterile lancets, 28 gauge.