I got a couple of these but as the other reviews state, it really takes forever to fill and load with them. They're durable at least. I lopped off the top of mine and made it into a lid so now it's rather functional if a bit unsightly. Luckily they're hidden in my mag pouches.
as in the previous review that states it is horrible, and takes forever to fill, and forever to get the BBs out..its true..i would recommend just buying another magazine..save yourself the time and the trouble..