When the package arrives you get a surprise first. Included in the package are the distance meter, a bag and batteries, as well as the guarantee declaration and a usage instruction. If you put the carton on, you are very surprised, the device is much smaller than you know from other distance meters. The advantage, however, is clear. You can simply put the knife in the pockets of the Blaumann and then have plenty of space for other objects in it. The pockets are not so big and normal distance knives can only be so in the pocket that in this hardly any room for other things are.It is also a good thing to mention that the distance meter is very light and thanks to the sheath is good in the hand. It is also very robust. It is still functional even if it should fall down once or should be hit by mistake somewhere. Caution is only required if the device should come into contact with water. He is not quite so watertight. Against the slipping also protects the loop attached to the device, through which the hand seems to fit perfectly. As far as accuracy is concerned, the device is perfectly adequate for the measurement of the length and the measurement of the area for most purposes. Remember, however, that the device has an inaccuracy, as indicated by the manufacturer. It can not be used when it comes to static considerations or if you want the measurement to be accurate to the tenth of a millimeter. However, the knife is perfectly adequate for the measurement of interior spaces and an application within the scope of normal everyday craftsman use. Positive, I find that the device immediately, after it arrived, was usable for me. The batteries were included in the package and it also had a bag, which I could immediately use to take the device with: Especially the thing with the batteries fell positively, so you do not have to go extra and what to buy and If the existing batteries should be empty you can take these same and take as a sample for the purchase of the new ones. The distance meter is recommended to all hobby craftsmen and can also be used very well by landowners or landlords. For example, if you have to measure apartments frequently or simply need an accurate estimate of the area, the unit is perfectly adequate. One can also imagine that it is a real gain for cleaning companies (area calculation) or for painting companies. If you have to measure exactly to the tenth of a millimeter, the device is not suitable for this and should prefer an alternative. For this customer group, however, such knives, which you get under 100 euros, certainly certainly not interesting. Such a measuring device group is about 70 euros and is thus a real bargain on the home improvement market. It should also be noted that the meter saves a lot of time. There is no longer any effort to measure longer distances. If one had to change several times the Zollstock, now the unique holding of the device is enough