Premium components: (i) heavy-duty lid hinges and screws. (ii) inner hinge over-engineered for maximum strength and durability. (iii) premium quality 350gsm 100% polyester fabric. (iv) a waterproof inner liner protects the bed in the event of an accident. What you should know: (i) foam liner, outer cover, & step pads are machine washable in warm water (recommend hang drying all components).
(ii) 3 grey and 3 black step pads included, you choose (iii) floor protectors included for the feed & handle.