Horze Smart Grooming Box Made of Polypropylene, a durable plastic resistant to cracks The high quality storage/grooming box with a non-slip 'point' surface design Separate storage tray inside Use as a step or seat Polypropylene. Size: 16 x 12 x 11.6 in (40.8 x 30 x 29.5 cm) Holds up to 17.5 lbs. (8 kg)