LACIS-Blocking Board Set. This pinnable board with floating vinyl grid is great for blocking any lace or needlework fitting within a 22x22 inch area. The markings are in color in fifteen degree radial lines (24 segments) and a one inch square grid. Suitable for wet or steam blocking. Additional boards can be added to enlarge the working area (sold separately). This package contains one 24x24x3/8 inch pinnable board with a floating vinyl grid. Made in USA.