They are huge! It's 40 x 40" so that was a challenge to find a place on my small patio. The metal handle shaped pieces that hook one unit to another, aren't long enough. Try as we did, we couldn't get all 4 into the holes they were made for.

The kids are very cheaply made. Had to put tape to keep them on and still leaked.

Seem to hold the umbrella up. The metal locking pieces don’t fit in mine, so I am not using those. Simple to fill and maneuver if you need to move. Would probably go back to my sandbags if I didn’t have these.

Page states easy fill. Yeah for water. Small opening the size of the hose end where u attach a sprayer. Not even the hose end fits in so it took less than a minute to fill with water but I guess at least 30+ minutes for sand (each). Connected nicely. Not as sturdy as I wanted it to be. Now which is it? This page shows 50lbs for sand YET directions state 40lbs. So 160 vs 200lbs? Which is it? Guess I'll find out by attempting to fill one.

Good product had to resort to putting in sand, when I put in water there was a leak in one of them

What I like about the product is that if you finagle it right it will keep the umbrella in place what I don't like about it is that you have to finagle it it to make it work will you look at my pictures you'll see what I mean I didn't want to send it back because I thought I can make it work and 4 to season so far it has worked

Its okay........

doesn't fit under my table.

Hard to fill with sand, aren't appropriate for the Myal 9.8ft offset umbrella

One had holes in it sub water. Used sand