One 10.5 x 6 inch Cow Birthday Girl Tall Centerpiece with assembly instructions. Add some style to your tables with our Cow Birthday Girl Tall Centerpiece. This centerpiece was designed by Moxzie, Inc. to coordinate with our Cow Birthday Girl 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.