Aquatec VITON O-Ring Kit Regulator Bag Fourth Element Tech Fin are

Fourth Element Tech Fin are a classic vented fin

Pre-forming

If the Dripstone Diving Weight System doesn't meet your specific requirements

Made of breathable fabric

Aquatec VITON O-Ring Kit Regulator Bag Fourth Element Tech Fin areMaterial: Viton 90. Hardness: Shore A. (Shore A means high strength sealing material). Compressive Strength: 16. 2 mpa. Temperature Strength: 20 degree ~+200 degree. AS568 006 x 10 pcs (I. D: 2. 90 * W: 1. 78). AS568 007 x 10 pcs (I. D: 3. 68 * W: 1. 78). AS568 010 x 10 pcs (I. D: 6. 07 * W: 1. 78). AS568 011 x 10 pcs (I. D: 7. 65 * W: 1. 78). AS568 012 x 10 pcs (I. D: 9. 25 * W: 1. 78). AS568 013 x 10 pcs (I. D: 10. 82 * W: 1. 78). AS568 014 x 10 pcs