My chickens loved the pecker balls but only when I placed them on the floor. Unfortunately, when the treats were inside the treat holder, the chickens were not interested at all in pecking at them.
At first they didn't want them, they wouldn't even try them...not sure why. BUT when they did try them they (3 hens) will eat a whole one in a couple of hours so I tend to only give them one per week as a treat.
Feldy produce the highest quality products for chickens. Our little flock of three has used their pecker block before and now we can't wait to use the same fabulous ingredients in the balls. They last ages and are a fabulous supplement to their diet.