Priming beers with 1/2 teaspoon of sugar per pint can be a messy and time consuming affair. These pre-weighed and shaped glucose drops provide a simple way of adding priming sugar to bottled beers and lagers.
Like the Coopers Carbonation Drops these are packed in 60s (approx) and are designed to work with Australian size bottles, which are 375ml for "stubbies" or 750ml for "long neck" bottles. However, the pack weight of 200g suggests that 30 of them would easily provide the full amount of priming sugar for a 40 pint kit, so I suspect that they can probably safely be used at the rate of 1 per UK standard 500ml bottle provided that you have left the beer for an extra week or so in a secondary fermenter prior to bottling, so as to reduce the amount of yesat transferred to each bottle and slow down the rate of "in-bottle" conditioning. (If you bottle straight from the fermenter, you may end up with "lively" bottles once conditioning has finished)