Wholesale Tibia Curta seashells in bulk, Tibia insulaechoarab, measure between 3 and 5 inches in length.  These wholesale Arabian tibia seashells in bulk are brown shiny shells found in the Indian ocean in intertidal to moderate depths.  Tibia shells are used in seashell crafts, shell baskets, glass containers and in making seashell mirrors, wreaths, ornaments and shell characters.