I bought these in Wally's in Cardiff & initially thought they were hollow, which was good because I then tried to frantically find some purchase on it like a dog with a dental chew, it was actually a really fun & stimulating experience! If you have strong teeth/jaw you may well be able to bite through it, or shave a bit off at a time like I did, otherwise maybe break it up manually first. The chocolate is great quality & the toppings are lovely & superbly crafted. This is how novelty chocolate should be made, thank you!!