These Rudolph the Red Nose Reindeer-themed tennis ball set is a perfect gift for your pet this Christmas! Set of Four tennis balls; one red, 3 brown, and all say "Merry Christmas." Do you have a dog that loves fetch? This is the perfect gift if you want to get them a few themed tennis balls to feel some Christmas spirit! These tennis balls are of standard size and will fit any dog; small, medium and large!