40LB Adjustable Dumbbell Set with Quick-Change Weight System - 12 Free Weights Home Gym Equipment for Men & Women - Perfect for Strength Training, HIIT Workouts & Home Fitness Routines

12-SPEED ADJUSTABLE MULTIFUNCTIONAL DUMBBELLS Experience 12 different weight training experiences with just one dumbbell to meet the needs of different scenarios of exercise. Adjustable design can meet the needs of beginners to advanced fitness enthusiasts

1 SECOND CHANGE WEIGHT Simply rotate the dumbbell handle with one hand and select the desired weight in 1 second. Save the time of changing weight plates in traditional dumbbells and achieve better training efficiency

SAFETY STRUCTURE DESIGN The adjustable dumbbells are designed with a unique double safety locking mechanism. The weight plates are securely fastened to the handles through 8 locking slots, and the rotating handles must be operated on the tray to ensure the safety and stability of the dumbbells

SPACE SAVING Adjustable dumbbells take up little space and are easy to store. Reduces 80% of the storage space of traditional dumbbells and meets diverse weight training needs

DUMBBELL WORKOUT BENEFITS The multi-weight all-in-one design of the dumbbells is perfect for a full body workout for a variety of people, delivering muscle building, calorie burning and cardiovascular benefits