Sorbus Stackable Small Bins Open Front

I have the medium 2 pack that are front loading, so deeper version. I’m keeping 5 lbs of rice and some noodles in the bottom and stacking packages of long pasta products in the upper bin. Maybe 7 packages.There are no directions of how to use the stacking tabs. Do you keep them out? Do you push them more toward the bin? Keep in the middle? There’s no weight limit listed either. But I don’t think this is too much weight for pantry items and these should be able to handle it.The sides of these bins are just too flexible.Pushing the tabs in after connecting seems more secure but changes the shape of the bottom one. Keeping far out is looser. Putting at a middle ground seems the way to go but it’s also requires adjustment as these tabs will slide in and out.In summary, I wish there was a more secure mechanism to stack these, a more concrete way, and while light, I wish the bins were a bit thicker and more sturdy.Also, when you wash these there is -0- way to get all the water out of these space between the unit and the tabs! Whether you slide in or out, the center of it is never exposed! We made the mistake with one and had to put it in front of a fan for quite some time to get it to dry before placing in our pantry we were just redoing! I have no idea our plan to handle that in the future! It’s pretty tough to wash these and get no water anywhere on the bottom! So we just wiped the rest out.We also bought a small and large set of front opening bins but we did not stack them. They have the same stacking mechanism however.Our pantry is neater and we like them but they do seem a tad thin. Probably not the worst on the market. To us, they were far better not stacked.Also didn’t love the cardboard in between them in shipping that are held down with tacky stuff. For one, had to get goo gone out and then clean that oil out (the washed one!). Luckily the tacky stuff was able to be removed on the others cleanly.As far as price, all bins seem expensive for what they are. These are comparable.