Package Includes: 4×weight plates + 4×rubber ringe (If you choose the plates with a different diameter from your original dumbbells, the rubber rings provided will be useless.)
Use: insert the new ones between the weight plates of your dumbbells.
Warning: While the threads match, feel free to mix and match weight plates, such as pairing 3lb plates with 10lb dumbbells. Keep in mind that the sizes of the plates vary.
Recommended Match: 4x0.5lb plates for 5lb dumbbells, 4×1.5lb plates for 10lb dumbbells, 4×2.5lb plates for 15lb dumbbells, 4×3lb plates for 20lb dumbbells, 4×5lb plates for 30lb dumbbells, 4x7.5lb plates for 50lb dumbbells.