Made in the USA from 9 & 11 gauge wire which is plated in gold zinc with an acrylic lacquer coating for maximum protection from the elements. The Wire Mesh Top measures 4' x 4'with a mesh spacing of 1.5'' x 6'' The edges of the 540-WM are bent at a 90 degree angle to overlap the side of the exercise pen and includes 8 bolt snaps to affix the top to the exercise pen. Compatible with the following pens when setup as a 4' x 4' square: 540-24, 542-30, 544-36, 546-42, 548-48, 501-24, 503-30, 505-36, 507-42, 509-48.
