Patient Positioner Set of 3. Heavy duty polycarbonate transparent thoracic positioners. Lightweight and easy to clean. V shape trough is elevated to help drain fluids away from the patient. Available individually, in a set of 3 or a set of 4. Small for dogs and cats 17.5 x 20 x 5cm, Medium up to 18kg 20 x 25 x 6cm, Large up to 30kg 22.5 x 35 x 7.5cm.p or Extra-Large 30kg+.