Model AST2 Allen Sports Steel 2-Child Bicycle Trailer. Does NOT have any gaps around the rear of the floor allowing small/thin things to fall out or stick out and jamb your wheels, has an easy to set water stopping and securely attaching rain fly/cover rig, sturdy steel wheels, holds an unexpectedly huge cart load of bagged groceries, does not get weird even at far over it's 100lb. rated load, I've had no floor issues with them, they have a convenient vertical access from the rear to the behind/under the seat area and even the stock tires & tubes do the job well and have a long life. I've used 2 of them as grocery haulers over the last 12 or so years with no problems except wishing I hadn't sold the first one and wasted time money & effort screwing with inferior trailers for so long before getting another AST2. There are somewhat better trailers from $$$$ brands but also much less useful trailers from those same $$$$ brands, I enthusiastically endorse this Allen model's grocery getter performance and appreciate the relatively low purchase cost. They seem to be less commonly available now and the price has jumped from more than a decade ago but the value and performance are still there, I had to look around a little bit a couple years ago when seeking my current one but that and the big price jump may have been a Covid shortage thing.