AG 11 Pc Hermit Crab Kit Water Dish Water Bowl Growth Shells Small - for Aquarium Decor Craft HCSA13 All Natural Seashells By AG - 11 Pc Hermit Crab Kit Water Dish Growth Shells Small HCSA13 Sea shells measure ~1/2" up to 1" wide. Mouth openings measure ~1/2 of the shell size Excellent for aquarium decorations, beach crafts, nautical decor, wreaths, centerpieces, vase fillers, etc. Also nice homes for pet hermit crabs! Even includes 2 natural shell water dishes! All natural wood/floral/seashells will have imperfections and may have slight variations in size/color as they appear to in nature! Please check size to make sure they fit your purpose!