Microlet Lancets 0.5mm/28g are intended for use with the combination of Ascencia test strips and lancing devices. Each pack contains 100 single use sterile lancets, 28 gauge. Microlet Coloured Lancets 0. 5mm/28g are a sharp needle like device used to prick the skin to test the blood glucose level. Microlet Lancets have a small diameter to minimise pain and reduce the puncture force. Available in seven different colours, helping to remind you to change your lancet after each test. Designed to fit most conventional lancing devices on the market, so you can start using them with your favourite lancing device straight away.