This wig is made by 4 bundles with a lace frontal, and the length is 22 inches, usually the 250% density of 22 inches is 380 grams, this wigs is about 430 grams, some vendors named it as 300% density. But some still as 250% density.
And to be honest, the density is just the density, if you want to buy heavy density, please ask the vendors how much the weight of the wig is before purchasing.