These sun dried wholesale knobby starfish or armored starfish also called thorny starfish,or sea stars  measure approximately 4 inches up to 5-7/8 inches   (SOME WILL BE A LITTLE UNDER OR OVER THE SIZE). Thorny starfish or knobby starfish are a heavy armored starfish with a large middle disk and five big arms radiating out and have knob like projections over the entire surface. The numerous bumps make them a unique starfish to use in starfish crafts. If you need small starfish, large starfish or starfish for crafts, we have a large selection to choose from. You will receive some with broken knobs, small cuts and other natural imperfections. Sizes are approximate NOT exact.