THE SELF INFLATING LARGE DOG BALL IS UNBURSTABLE. NEW TUFF TOYS DOG BALL. TUFF TOY. IT CAN'T BE IGNAWED. MANUFACTURED FROM 3.8MM TPR ( THERMO PLASTIC RUBBER ) THE MATERIAL IS SUPER TOUGH, NOT INDESTRUCTIBLE AND RETAINS ITS ORIGINAL SHAPE EVEN AFTER DEFORMATION.
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