I've got the blue helium and for the price you can't really go wrong, personal preference for me is to have the double axle but in the bigger sizes especially I don't think it makes a huge difference to me. The helium is a little longer and has a nice solid feel when placed. If you get a full rack of them I guess you'll notice the weight difference as well.
A segment in tonight's episode of Channel 4's investigative series Dispatches exposes the sale of uncertified budget climbing gear online - carabiners in particular - via the shopping platform Temu, a Chinese app with...