Upgrade your baseball field with the Champion Sports Foam Filled Quilted Cover Base Set. These durable bases are built to take on cleats and aggressive slides, thanks to their heavy-duty quilted nylon cover. Made to regulation size 15" x 15" x 2", they ensure a perfect fit for your diamond. Each white base comes with 2 steel spikes and 2 nylon straps for easy setup and secure hold. Just loop the straps, pound the spikes in, and adjust the buckles – you're ready to play.