Here are Heddwyn and Hefin.
Hefin is the smaller snail and Heddwyn was the larger one. Unfortunately Heddwyn has passed away since this photo was taken. However, Hefin has a shy new friend named Rhodri to keep him company.
I haven't had any luck getting nice pictures of Rhodri as he tends to hide underneath the flowerpot or his food most of the time, often with Hefin sat on top of his shell !