[Food grade material]: Our square air fryers are made of food grade 304 stainless steel, fine workmanship, smooth surface, not only rust resistant and easy to clean, safe to use in dishwasher. [Dimensions]: 19 x 13cm . Make sure your air fryer size before purchasing. Do not apply too much force when inserting and removing this product into the hot air fryer, otherwise the hot air fryer may be scratched. [Multi-Layer Stackable Design]: There are 3 removable trays, the number of trays can be selected according to the amount of food. There is enough space between the trays, stratify multiple foods to cook at the same time.The air fryer grill improves the air circulation around the food, making it more crisp and delicious. [Easy to Use]: The shelf is convenient to use. It can be easily installed and each of the three layers is removable. The shelf is convenient for storage. Compared to frying food without the grill, the three layers can load more food, maximize the heating surface of the food and prevent food from sticking.Each stackable rack features mesh basket design, no need to worry food falls off when removing from the rack. [Use Widely]: Our stackable dehydrators can be used not only for grilling steaks, making lamb crusts, pork crusts or chicken wings and dehydrating fruits and vegetables, but also for steam ovens, perfect for home use.