Yes4All Aquatic Exercise Dumbbell/Water Filled Dumbbells for Pool Workout, Light Weight Training, Blue Price: $21.99 (as of 15/04/2023 03:10 PST- Details)

HIGH QUALITY PET MATERIAL: Made of PET, which is a strong, lightweight, moisture resistant plastic; Therefore, the pool weights can work great in water, supporting underwater exercises, and it can dry quickly after each use
EXCELLENT INTEGRAL DESIGN: Product is molded with monolithic plastic, without separate welds; The integrated form helps to prevent water from spilling inside, creating a reliable workout condition
TAKE IT WITH YOU ANYWHERE: Hand weights for water aerobics feature compact design and are pretty light in weight for storing conveniently as well as bringing it easily to any place you want