A:Answer This may be is the sub-divider for the pull-out drawer that hooks perpendicularly over the drawer's other dividers. It slides on the drawer's plastic rails to adjust the compartment as you desire. However to me, it looks nothing like a butter dish. I've bought 2 of these refrigerators and each comes with one (1) divider for the drawer to be used as you may prefer. I agree, it doesn't make sense to have only one (1) - there should be two or none. Let me know if this is the item you're describing. Attached is a photo of my drawer.