I purchased 4 of these.  They are nicely built and come with the drain.  The drain is for a sink with an overflow hole.  My new vanity did not have one but I installed it with little modifications and it is working great.  The other sinks had the overflow and these are working flawlessly.  I had one problem with 2 sinks. The water lines were not long enough.  I purchased (total of 4) extension hoses and the problem was solved.  This added about 6 in cost to the two faucets that needed the extension.  There is no need for plumbers putty.  I used the provided plates to cover the existing 4 inch holes.  The plates have a foam type of material that squishes down to make a seal.  I used a razor to clean the area where the old faucet was.  The most difficult part was unscrewing the old drains and oh my lord, icky stuff inside!  Easy to clean but I had no idea!  Wayfair delivered these faucets faster than prime!  Perfectly boxed, everything in perfect condition.