Two 30mm AB Star prisms, Measuring 1-1/4 inch with the coating on the backside. With 8 points and over 1/2 inch in thickness with a hole at the top to hang them by. The coating on the backside is very light almost clear but it creates every hue in the rainbow on the front when the sunlight hits it. Many triangular laser facets both front and back. This higher quality prism is a perfect gift. Beads and hanging filament included. Your prisms will be shipped gift wrapped as shown.