Min is not a valid member of IntValue Max?

                    local descendants = part.Drops:GetDescendants()
                    for index, descendant in pairs(descendants) do --error here
                        if descendant.Min and descendant.Max == true then
                            local randNum = math.random(descendant.Min.Value, descendant.Max.Value)
                            for count = randNum, randNum do
                                descendant:Clone()
                            end
                        end
                        --rest of non important code i guess

So its supposed to get descendants of the item drops of the item, stored in a group, which it does, but when i try to make another loop in the loop i get the error Min is not a valid member of IntValue "Workspace.Tree.Drops.WoodChunk.Max". How could i do this so it works?