THERABAND Water Weights - Aquatic Dumbbells for Pool Fitness & Water Aerobics | 2 Foam Weights with Padded Grip for Swimming, Therapy & Aqua Training | Medium Resistance Green Pool Exercise Equipment | Perfect for Home Pools, Rehab & Senior Water Workouts

I swim daily (we live in Florida) and I use these weights every day. They are great. Very light weight until you get them under water and try to force them down deeper. That is when the resistance builds up. I bought them in three resistance levels. My wife uses the RED or low resistance weights while I rotate between the green (medium) and blue (high) resistance weights. We have been using them for over a year now and they look brand new. I do put them out of the sun when they are not in use. My previous set started to deteriorate after two years due to exposure to the sun. This set is holding up very well. I would highly recommend these weights to anyone who wants are good, low stress workout in the pool.