Stability Rating: 7-On the SOL stability rating this is an advanced board

High denier poly fiber

This training device will help improve your swimming endurance and strength

Two 46" diameter connected tubes

Battery: - Two internal

Sporti Essential Training Swim Fins Size:M 13-14 / W 14-15-OB-A Stability Rating: 7-On the SOLThe Sporti Essential Training Swim Fins are a must have for your swimming workouts. Made of natural rubber, these swim fins are more flexible than Silicone fins, providing for more freedom of movement. Features Improved fit and updated sizing Two toned color design Shorter blade to aid proper kicking form Flexible foot pocket Closed ankle provides extra support Fins float to the surface Easy on off Training Benefits Mimic a more natural kick and allow