Stainless Steel Ball 1.Material: stainless steel 2.Size: 0.3-50.8mm 3.Grade:G10-G1000 Product Name: stainless steel ball1.Material:201,302,303,304,316,316L,420 ... ,440,440C stainless steel2 ... you need 9.Applications:If you are interested in our stainless steel ball,pls feel free to contact me ...