Specifications (model + number of rows of punching): 180*150 (3 rows), 80*200 (4 rows), 80*225 (5 rows), 80*250 (6 rows), 80*300 (7 rows), 80*350 (8 rows), 80*400 (9 rows), 80*450 (11 rows), 80*500 (12 rows), 80*600 (15 rows) 2150*150 (2 rows), 150*200 (3 rows), 150*250 (4 rows), 150*300 (5 rows), 150*400 (8 rows), 150*500 (10 rows), 150*600 (12 rows) Weight: 34-45-49-53-60-75-91-95-109-135g (for width of 80mm) 66-92-114-132-169-198-250g (width of 150mm) Color: black Material: made of aluminum alloy, rust-proof and durable, adapt to wet kitchen and bathroom environment, beautiful and good-looking appearance. Surface treatment: overall polished, beautifully polished electroplating, strong and durable, round and smooth to the touch, no fading, no rusting. Thickened material, solid structure design, full of material thickened base load-bearing stronger, long service life. Humanized design, wave-shaped embedded design, can be firmly fastened to install the cabinet door, not easy to fall off, durable. Scope of application: our products are widely used in closet, cabinets, closets, shoe cabinets, storage cabinets, etc. Each grid is evenly distributed for better ventilation and air flow. Quantity: 2pcs