Adjustable dumbbells.

Pair of small adjustable dumbbells suitable for home workouts. Set of 2 dumbbells (38 pounds total weight): TWO 3-pound dumbbell handles, FOUR 2.5-pound plates, FOUR 5-pound plates, and FOUR 0.5-pound collars
Great for targeting individual muscle groups including arms, shoulders, and back or incorporating into a full body workout.
Adjust weight quickly by sliding plates on/off and securing with threaded collars.
Includes a durable black storage case with carry handle for compact storage and easy transport.