Omni-Directional Aquatic Dumbbell Bundle - Water Weights for Pool Exercise - Upper Body Pool Fitness Equipment - Includes Online Access to Workout Programs and Videos (3 Pair)

Got them for pool workout. They are great..

A video would help I’m a physical therapist so I didn’t want to use them

I think a ridged or diamond grooved design might add better grip, other than that, perfect resistance exercise equipment