As someone who is new to smoking (and rolling) joints, these glass tips can make it easier to roll a joint; the magnetic base stays firm on a rolling tray which frees up a hand and makes the whole process a bit smoother. Speaking of smooth - the filtering on these tips is great - hugely noticeable when coming from pre-rolls with cardboard tips.
My only complaint, unfortunately, is that whatever adhesive is holding the magnets to the end of the glass isn’t the most durable. Either through normal use (one magnet popped off just after finishing a smoking session), but most often during cleaning (q-tip with alcohol)… it sucks when the magnets pop off.