These silicone travel bowls are made of durable, non-porous materials. The special collapsible design folds down to less than 1/2in - ideal for travel, parks and walks! Fits right in your back pocket or toss it right into your bag! 1 cup (8 oz.) Is ideal for small or medium size dogs & 3 cup (24 oz.) Is big enough for large size dogs. Made of fda compliant materials. Pvc and bpa free. Top rack dishwasher safe. Choose from pink, blue or green