It's a quilt that is made by a group of quilters and it's a variation of doing friendship blocks. To start, everyone makes a block for the center. There can be all kinds of rules for size, color , theme, etc. The blocks are passed to someone else in the group. They add the first border. Then the next quilter adds the second. This usually continues until there are three borders that have been sewn by three different quilters. The quilter who made the center block then gets the quilt top back to keep and finish.