JW Hol-EE Roller is a fun, versatile dog toy with the durability you've been searching for. Rubber gives it strength, bounce and a soft texture The unique open design allows you to stash small treats or kibble inside for hours of entertainment for your dog. This is the top selling dog toy in the line, it is non toxic, durable, rubber and super-stretchy. A do-it-all multipurpose dog toy! It's a fantastic treat ball, wonderful training aid, great for fetch, toss and tug, chewing and teething. WARNING! For supervised play only.Know your dog and choose the appropriate size and type of toy to prevent choking or other harm. Inspect this toy regularly; if toy is damaged or if parts become separated, remove toy and parts as injury may result. Not a childs toy.