This listing is for a really practical tool which is used for watch or jewellery repairs. This item is perfect for using in a domestic environment as well as in a business as it can easily be used to open watch backs, watch straps, jewellery clasps, delicate small screws and similar sized items. This listing is for 5 different sized screwdrivers and the head sizes supplied are 0.8mm,1.0mm,1.2mm,1.4mm and 1.6mm. that is approximately 9cm long and is approximately 1.9mm thick. Since the sizes above are measured by hand, the size of the actual item you received could be slightly different from the sizes listed above. Please also be aware that due to lighting effects, monitor's brightness / contrast settings etc there could be some slight differences in the color tone of the pictures and the actual item and this is not intentional. This item comes in frustration free packaging without papers or packaging. We are based in the UK and item is ready for immediate dispatch with Royal Mail.