DoublePlay is the glass wall brand of A Best Enterprises, based in Golden, Colorado, manufacturing and installing glass wall systems for sports courts for more than three decades. Its core product is a movable glass wall that converts a court in under a minute, which lets one space serve racquetball, squash, and other court uses, alongside structural glass walls, doors, and railings.

Pickleball appears in its installed work: the portfolio shows an indoor pickleball installation at the First and Main YMCA of the Pikes Peak Region in Colorado Springs, and pickleball courts are among the court types its systems serve.

Other named installations span universities and clubs including Cal Poly San Luis Obispo, UC Santa Barbara, Longwood University, and country clubs in Virginia and Arizona, with projects across at least seven states.

Inquiries run through the published sales email.