We are pleased to offer you one of the finest K-9 flying discs on the market, the Hero Air 235 (105-110 grams) model. Many top canine flying disc enthusiasts rave about the Hero's friendly grip, straight glide and true performance. Customers have complemented us on the softness and friendliness of the Hero Air plastic. DISCLAIMER: These discs are NOT puncture resistant. Please purchase "Super" model discs for dogs with harder bites. Discs will not be replaced by damages incurred by dogs as these products are not chew toys.