One 10.5 x 6 inch Lock Blocks Tall Centerpiece. Add some stacking style to your tables with our Lock Blocks Tall Centerpiece. This centerpiece was designed by Moxzie, Inc. to coordinate with our Lego Party Supplies. The triangular piece is printed on all three sides, and set-up is quick and easy. Use your centerpiece alone, or pair it with our small centerpieces for a perfect matching set.