Upgraded structural design - The weight plate of the adjustable dumbbell group adopts an octagonal design, effectively preventing rolling, ensuring safety and stability during use, and facilitating storage and management. 

The adjustable dumbbell set supports four usage modes: dumbbell, barbell, kettlebell, and push up assist. By introducing this multifunctional device into your home, you can build a personal gym and embark on a journey of scientific fitness. 

Weight Packaging List - The 66 pound fitness dumbbell set includes: 4 pieces of 2.75 pound weight plates, 4 pieces of 3.3 pound weight plates, 4 pieces of 4.4 pound weight plates, 4 pieces of 5.5 pound weight plates, 4 dumbbell nuts, 1 connecting rod, 2 dumbbell rods, 2 kettlebell handles, and 1 kettlebell base. 

You can flexibly choose different combinations of weights according to your own needs, meeting the intensity requirements of individuals and family members at different training stages. 

The four in one multifunctional mode supports diverse balance strength training, which helps strengthen the biceps, leg muscles, and abdominal core muscle groups; At the same time, the device can assist in maintaining stable blood lipid levels and increasing oxygen intake, thereby promoting overall health status. 

Upgraded Material - The interior of the weight board is filled with cement iron sand and wrapped in high-grade PE material, which has anti slip and shock-absorbing properties, effectively avoiding floor damage and rust problems. The thickened foam connecting rod is designed according to the ergonomic principle, which can significantly reduce the shoulder pressure and reduce the risk of sports injury. 

Easy to assemble and store - Based on the exercise needs of individuals and family members, users can quickly assemble the equipment to achieve the desired weight configuration. For users with limited space, the device can be easily disassembled and stored in concealed locations such as under the table after use, maximizing space savings.