Delmar chair arm pads offer arm cushioning with a slightly concave support surface. 4" wide - provides excellent support to your arms. Very comfortable and soft material that cushions your arms. Durable construction. Bottom attachment holes are spaced 4" from center to center. Bottom attachment holes use 1/4-20 screws (Included for Free with this product). Fast and economical Priority Mail Shipping. This offer includes 1 complete pair (right and left) of new high quality chair arm rests as shown in the picture. Specify a quantity of 1 for 1 set.. 2 for 2 sets.. etc. This offer does not include arm posts. Satisfaction guaranteed, if product does not meet your needs, just return within 30 days for a refund (shipping is not refundable). If you have any questions, just call toll free. Click on the image below to view other angles and dimensions, you may need to temporarily allow pop-up windows.