All kids have trouble with b and d. What a fabulous way for them to remember which way each letter goes. The student can easily use their hands, no other charts or pictures are necessary. This comes in handy if you are somewhere and do not have other pictures with you. While the student writes, he can hold up his hands and check the letter direction much more quickly with this method.
I got this as a freebie (very appreciated!) but am not sure how much I would pay for it so I cannot comment on that part.
I put this in my student's mini-office and he enjoys giving me the "thumbs up" when he gets his letters correct.
[5 of 5 Stars!]