This custom cut acrylic ornaments are UV printed with a Casey Andrews Art original artwork. On one of my first trips out to my now husband's farm, I was a "fresh to the country" kind of gal. I looked in my rearview mirror and literally thought a plane was chasing me. I did not know about crop dusters and Ag planes. Bless my heart. Now, the sound of an Ag plane going over the fields is second nature and the kids and I often stop to watch them land or take off on the runway. All of our Acrylic Ornaments are 0.04" thick so it is sturdy but very lightweight. The average size of each block is approximately 6". We designed our ornaments to be pet and kid proof on the tree!