The Square on Square Trim Tool by Creative Grids has all the markings you need to create a Snail’s Trail block! And, since the pieces are cut larger than needed and trimmed down to size AFTER cutting, sewing and pressing, this block is oh sew easy. The focus print in each block can be cut from a 10-inch square so it is a great stash buster. And, since you only need 12 blocks to make this mini, it really can be completed in an afternoon! 18in x 22in. The Creative Grids CGRJAW7 is required. Project Time: 2-6 Hours. Fabric Type: Square Friendly. Project Type: Quilt.