Med. 3.75" EXTRA Monkey Fist Ball w/Handle. Mammoth Flossy Chews EXTRA are made from premium quality cotton-poly yarns that help dogs maintain good dental hygiene while they play. Play time is an important part of bonding between you and your dog. Designed for strong chewers. Perfect for interactive playing, tossing and tugging. Toss. Tug. Floss. Great for small to medium size dogs.