Ⅰ.The washing machine is made of thickened high-quality stainless steel 304 material, strong and durable. Ⅱ.Glass thickness automatic detectd during glass washing, the Max, glass thickness can reach to 30mm. Auto-adjustment when the glass exceeds 8 mm. Ⅲ.Adopts thrust aligning ball bearings, which are more durable and stable than other rubber and plastic materials.