Rainbow Armoured Starfish (Knobby) Sale! from $16.99 USD /per Taxes included in the price Produc variants 3 - 4" | 6 Pieces Qty. Add to Cart Couldn't load pickup availability Refresh Protoreaster linckii, the red knob sea star, red spine star, African sea star, or the African red knob sea star, is a species of starfish from the Indo-Pacific. Dyed Natural Starfish for crafts or decoration. Great for Weddings.