These are all natural jade green TURBO BURGESSI shells also known as jade turban. These shells are approximately 3 inches to 3 1/2 inches long with mouth opening sizes of about 1 1/2 inch to 1 3/4 inches and have been polished shiny and smooth on their outer surface. Each is a little bit different and unique in color and pattern. Turbo shells are natural items and some may have minor imperfections. These distinctive green turbo shells are perfect for nautical themed Hawaii style craft or decorations. Turbo shells are also very popular for many types of hermit crab shelters, in this case for rather large hermits. Photos are stock photos, you will not receive these exact shells but ones very similar. All shells have been legally and sustainably harvested. Out of country buyers apologies but sealife cannot be legally shipped outside of the United States.