Hi guys, i went to buy needles yesterday and the nurse told me that they are replaced the 30mm needle to 25mm, so i bought 1" and the old one was 1" 1/4. My question is that can i use the 1" for injecting in the buttocks, i have a few left of 1" 1/4 but not enough and i'm not sure if i am able to buy them from the pharmacy because she said that they changed from this old size to this one...