Environmentally friendly materials: Made of food-safe silicone and ABS material, meet the BPA standards. Filter element: filtering of impurities and chlorine, odorless and antioxidant. Super safe for your pet. Large size: This bottle holds 360ML of fresh water, so your thirsty pets can be quickly supplied with fresh water when traveling or outside. Portals and lightweight: silicone sling, firm and durable, arched channel, suitable for the drinking habits of pets. One-hand operation: push-out water button with transparent cover, leak-proof and dust-proof.