Get 4.99 more and order this.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130469&cm_re=Nvidia_250-_-14-130-469-_-Product
It has free shipping & a mail in rebate for 15$.
I didn't, the nurse just had me squeeze a ball then she took it. I had blood taken to check for arthritis in my elbows, which it turns out I didn't have.