10 All Natural Seashells - For Beach Crafts Nautical Decor Hermit Crab Growth Shells Size Small HCSA33 All Natural Seashells By AG - 10 All Natural Seashells - For Beach Crafts Nautical Decor Hermit Crab Growth Shells Size Small HCSA33 Sea shells measure ~3/4 up to 1 1/4" wide. Mouth openings measure ~1/2 the shell size. Beautiful shells with nice shiny bands! Excellent for beach crafts, nautical decor, fairy gardens, miniature gardens, beach wedding decor, vase fillers, etc. Nice homes also for pet hermit crabs and great as aquarium decor! 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!