The Big Mouth Inc. Snow Tube The Big Flyin' Fox 4ft is a fun and colorful snow tube designed for kids. Made of durable PVC vinyl material, this 4-foot snow tube features a unique design of a fox and is perfect for downhill sledding in the snow. With its compact size and easy-to-use design, this snow tube is sure to provide hours of entertainment for young snow enthusiasts.. Ships Fast From GA. Thanks