Futures 3/4" Fin Box Fillers are designed to be placed into empty fin boxes when not in use, commonly when riding 5 fin set-ups as either a thruster or quad fin configuration. 

• Quantily: Two white fin box fillers per kit
• Application: 3/4" Box Fillers fit Futures front side fin boxes of a thruster, quad, 5-fin or 2+1 set-ups