great set . I zip through workout quickly w \/ this set of dumbell . a bit pricey but you get alot for you money . I hope they will last , prior to buy from this site , I check the set out at a big name sport goods store w \/ the dirty name . the display model be break from customer use . not sure if someone mishandle it or it be just from repetitive use but on one setting , one of the plate would not stay attached\/engaged w \/ the main dumbell . great pc of excercise equipment .