tennis ball,good training toy for dogs/pets material:rubber/felt dia:4.2cm/6. ... .5cm/10cm/12.7cm Tennis ball for training dogs/pets,toy for petsAs a manufacturer,we are committed to produce the ... us for more details. This product is for training your pet--dog,training it's ability of running,reaction and keep ... between you and pets! tennis ball,tennis ball for dogs,toy ball,dog training ball,