Exervo Water Aerobics and Exercise Foam Pool Dumbbells Weights Combo Set - Maximum and SuperMax Resistance Pairs - Free Mesh Dry Bag - 14 Page Instructional Booklet Included Premium, cross-linked Exervo AquaComfort EVA foam for durability UV & bacteria resistant plus water beads right off EVA foam for super fast drying Set includes a pair each of Maximum & SuperMax dumbbells to vary resistance levels These dumbbells offer high, difficult resistance. Also available in Light, Medium & Heavy Free 14 page instructional starter guide