●1. Adjustable strap increased flexibility and comfort. The improved mask fit different face shapes well including age from 4-10 years old. This mask can reduces face water pressure, seals on your face well without worrying about water leakage. ●2. Silicone mask skirt, strap and mouthpiece provide better fit, added comfort, and increased durability. ●3. Advanced lens shape design and tempered glass with anti-fog treatment make you have a crystal clear underwater experience,user friendly for kids. ●4. Swivel buckle and quick release keeper allows for quick and easy adjustment both in and out of the water. ●5.Do not drop the diving goggles at will, avoid squeezing heavy objects, otherwise the lens will be damaged. Adult supervision should be provided at all times. Not suitable for children under 3 years old due to small parts.