I hadn't really looked at the gauge. I just assumed they'd sent what I asked for. It turns out they sent 22G1 1/4. I'd ordered 25G5/8 and 27G1/2. I just called a nurse and she said that what I was sent is way too big for kids the size of mine. So it turns out I can't use them anyway. The co-pay was $5 a box, and I'm not sure how much it'll cost to send them back. The pharmacy's supposed to call me back.