Pharmacy needle exchanges usually use pre-made packs of injecting equipment. Each pack will contain syringes, needles (sometimes as an all-in-one device), swabs to clean the skin before injecting and a secure container to dispose of used equipment. You do not usually get a choice of equipment but many pharmacy services now offer more than one type of pack for IPED users. You can also get some advice around injecting and some pharmacies offer extended services such as referral to other health services, blood tests or other health services.
So I decided to go to the pharmacy to get some needles for my first cycle. Walked in and there were about half a dozen oldies waiting for their meds, I thought about leaving and going back later but inspired by a zorrin post i'd read last night I thought to hell with it and boldly asked If they did needle exchange and could I get some needles. I was asked for my initials, date of birth and given a list of needles they supplied. They had blue 23g's and orange 25g's, I asked if they had greens but apparently they didn't, so i got a pack each of the blues and orange. There was only 2 of each needle in each pack and 2 alcohol wipes.