The Tusa Sport Youth UC0211P Mini Fit Youth Mask and Snorkel Combo features a 1-window mask with a fitting ring that creates a strong seal. The mask adjusts to different head sizes easily by a simple tug on the fitting ring. Tusa Hyperdry technology reduces water flow into the snorkel, while the pure silicone mouthpiece and flexible silicone joint reduce strain on the mouth. Designed for ages 6 to 12.