Just the right length not to long 6kg waight
Standard bars are 1" (25mm) and Olympic bars are 2" (50mm). I own multiple brands of standard weights and they all interchange and work unanimously. However Domyos decided to make their bare 28mm and so it will not fit any weight plates other than their own brand.
I do not recommend as you will be tied to this company and if some years down the line you want to resell the value will be a lot less as people want bars that can fit the industry standard.
Thanks to give us your feedback on Weight Training 1.20 m Weight Bar - 28 mm diameter. Unfortunately you are right, the diameter for our "standard" Plates and Bars is 28mm and not 25mm. However our olympic bar and plates are about 50mm as required.
Don t forget you can claim a total refund or a product change in your nearest Decathlon Store