This has a squeeker inside that makes a sound as it slides while the ball is rolling. You can put treats inside and it helps to distract your pup for a while. My pups like toys they have to figure out and this one does the trick. TIP: To help keep your dog distracted, put out different toys on different days so they don't get used to the same toy being out every day. This will help get them to play with their toys vs getting bored and ignoring after a couple of days.