The pet training bag is made of food grade silicone, BPA free, safe and healthy.The silicone treat pouch is made of newest design,the good tightness can keep the dog food fresh all the time and never fall off.The dog treat bag itself comes with a Waist Clip that is easy to hang on belts, pants and packages.In addition, the additional Portable anti-drop Slings make it more convenient to carry. 4 9/10" L x 1 3/5" W x 4" H