Most reams in the results are sold as 500 sheets per ream (many listings state a total of 500 sheets).
Common sizes include 8.5 x 11 inches (Letter), 8.5 x 14 inches (Legal), and 11 x 17 inches.
Listings commonly show 20 lb and 24 lb bond weights, with heavier options such as 28 lb and a 60 lb choice also appearing.
Brightness values shown include 100, 98, 96, and 92; one listing notes "No Brightness Rating Provided."
Some colored paper listings mention FSC certification; several white/bright options note they contribute toward satisfying MR1 under LEED; acid-free is also commonly mentioned for archival quality.