Ergo360 Chair Armrest Arm Pads - Soft Replacements - 2 Piece Set - Screws Included These soft cushion chair arm pads work nicely with many typical office and ergonomic chairs. Soft comfortable polyurethane gel foam material cushions your arms and elbows. Smooth contoured design and symmetry provide visual appeal. Very durable. Attachment screws are included. Standard 4" center to center spacing for bottom attachment screw holes. Please measure before ordering. This offer includes 1 complete pair (right and left) of high quality Ergo360 chair arm pads as shown in the picture. Specify a quantity of 1 for 1 set.. 2 for 2 sets.. etc.