Attributes . - 5 x Caster - 1 x Base - 1 x Seat Post - 1 x Seat Post Cover - 1 x Mechanism - 1 x Seat - 1 x Backrest - 8 x Mechanism + Back Attachment Screw (M8x25mm) - 2 x Armrest - 10 x Armrest Screw (0.25"x1.25") - 2 x Arm Screw Cap - 1 x Allen Wrench (4mm) - 1 x Allen Wrench (5mm) . Names