Looking to add a little extra 'fin' to your creations? The Tri-fin set is a perfect addition to any mermaid top or accessory. Set includes three fin pieces: two large and one small. 

The two large fins each measure: 2 1/2 inches Tall by 7 inches wide

Small fin measures 2 3/4 inches wide x 3 inches tall

 *** To recreate the Creature from the Black Lagoon top you will need both the Shoreline set and the Tri-fin Set 

https://idfabrications.com/products/shoreline-set

All of our blank shells and creatures are made of an ultra light, resin plastic. Unfinished, they are extremely versatile, and they can be painted and shaped to fit your needs. The best part is that once they are sealed, they are completely swim-able. Combined with your imagination, the possibilities are endless!