Ho Stevie! Fiberglass Reinforced Polymer Surfboard Fins - Quad (4 Fins) FCS or Futures Sizes, with Fin Bag, Screws, Wax Comb and Fin Key …

The fins are plastic, which was expected considering the low price. The rear plugs on the front fin set were not quite square, leaning forward, such that the plug inside edges were too close together by about 1mm to fit into the FCS fin box. I filed off the offending material, and now they fit just fine. The plugs on the trailing fin set had no problems. Looks like it was a case of poor tolerance control on the manufacture of the molds for the front fins. If you expect needing to file a bit to fit, not a big deal for $20.

These fins are super worth it for the price. I rode the smaller 3.5in from the double fin package. They don’t feel as sturdy and thick as my 3D fins but they ride well. Now a certified Ho rider

I'm happy with these, as I've been with other Ho Stevie products. They're not the material of top of the line fins (nor do they claim to be), but they're a great value and exactly the shape/size I needed for my small wave boards. I've surfed on them at least a dozen times so far with good results. The screws, tool, and bag are sweet additions.

Plastic fins. For the money they do the trickI have no idea what they mean by stretch??? It’s a solid plastic. They flex for sureI have not owned them long enough to attest to durability

Can't really complain about these fins. They fit in the box and they were super cheap. Perfect for a board for my daughter who's just learning. These are not for experienced surfers who need performance, so only buy them if you need cheap backups or a set for beginners for whom good fins don't matter anyway. I'm glad the cheap option is out there so thanks for making these!!