"Had an imperial socket set but needed metric for a car job. These sockets came in a strip type holder, so easily stored with other tools but kept conveniently together. Worked well, although not over taxed with relatively simple job conducted, however the parts are solid and appear well made with a close fit on the bolts. A good range of sizes and much cheaper than a whole new socket set when old ratchet, T bars, extensions etc. can still be used. Recommended."