These PurAthletics Dumbbells are durable non-slip neoprene covered. Ideal for walking and aerobics. The dumbbells are sold in pairs."These PurAthletics Dumbbells are durable non-slip neoprene covered. Ideal for walking and aerobics.Durable & non-slip neoprene coveringSold individuallyIdeal for walking and AerobicsDurable Vinyl CoveredIdeal for toning and strength building, toning abs, thighs, and gluts, cardio workout, weight loss, core muscle strength. Color coded for weight classification, easy to assemble rack included."