These eight bed risers duplicated those that my daughter ordered, so they are available in pristine new condition, with a nearly new cardboard box to hold them. Four of them raise a bed by 3 inches; four others do so by 5 inches; and stacking the two sizes provides 8 inches of rise. Amazon says they are rated to hold up to 1300 pounds. I am located in south Berkeley near Shattuck & Ashby Aves.