Avery 2in Flasher Hexa Dog Training Bumper - The Avery HexaBumper's design eliminates many of the disadvantages of traditional round bumpers and holds up to the daily routines of pro trainers. 10in floating throw rope is included Leak-proof valveless design for long life Six flat sides offer dogs easier grip & hold Firmer feel helps reduce chomping tendency VGrips promote soft mouth with superior hold 2in Diameter Flasher (Black/White) Color Singles Bumper