These are made for displaying larger sand dollars such as Arrowhead sand dollars that range 4" and up. They are made from sturdy clear Lucite plastic. The sand dollar in the image is a 5-1/2" Arrow Head sand dollar. 2-1/4" Tall
2-1/8" Long (front to back)
The opening that you would set your item on is 3/4" deep. (front to back)
The perfect stand for displaying the large sand dollar.. Exactly as stated on the website.