Number of layers (specification):

Microwave oven rack (white)

Microwave oven rack (black)

Microwave storage rack (extra large)-welfare

Household appliance shelf (small size)-welfare

Household appliance rack (large)-welfare

Iron layered storage rack large (white)-welfare

Iron layered shelf small size (white)-welfare

Iron layered shelf small size (black)-welfare

Benefits-limited 36 sets-left and right retractable two layers

Two-layer microwave oven rack large-white welfare

Two-layer microwave storage rack medium-black benefits