Such a handy little sink bowl.  It is great for doing dishes, hand laundry, and bathing my 3 lb Papillon.  It is a great addition to my sink and I use it daily.  The basin drains with a turn of the disk and is water tight.   I even left the basin with water in it, in a dry sink overnight and in the morning the sink was dry.  No seepage and no leaks.  Gotta love that when you don't want to leave the basin in the sink and want to use it elsewhere and it will not leak