Hello, I don't recommend buying a kilo of 2-3 yuan. It is made of waste rubber, such as waste tires, and has passed its service life. First of all, it smells, and it is difficult to disperse, which is not good for your health. Second, it may not reach the weight indicated, it is not heavy enough! But also easy to break and has a short service life. Suggest buying the latter. The fair price is 7 yuan 1KG. I bought cast iron dumbbells, ALEX's, which are very easy to use. But you should also pay attention that the aperture size of the barbell piece should be suitable for the barbell you bought. The color barbell picture you gave is an Olympic barbell piece. It has a large caliber, 35MM, and needs professional Olympic barbell bars. If you buy an ordinary 28MM barbell bar, this one is not suitable. You need to buy a small barbell bar, which is 28MM!

If you want the address of the barbell piece and barbell bar I bought on Taobao, please leave me a message. I'll send it to you again.

I hope I can help you!