Everything, it seems to be understood, but ... heavy. Of course it is heavy because pins are buried. I did not measure it specifically, but it is as heavy as the sockets I used. It was the purpose of lightening the luggage .... It is hard to use. Bolts and the like must be inserted while resisting the spring which pushes out the pins and it is difficult to insert. Pins do not move far beyond imagination. It is difficult to understand the bolt, it is difficult to understand, sometimes the socket can not come off because it makes abnormal chewing. It gets scratched. The object is prone to be scratched. It is not usable.