General description 1 piece suction cup with a load capacity of up to 150 kg, designed for transporting glass, tiles, and sheet metal. This high-performance suction cup features a durable construction that quickly adheres to smooth, flat, non-porous surfaces. Technical specifications Material: Rubber + Metal + Plastic Color: Black Size: 210 mm Maximum vertical suction force: 180 kg Operating temperature range: -20°C to 60°C Vacuum maintenance duration: 4 hours Compatibility and accessories Ideal for lifting and moving glass, tiles, refrigerators, furniture, plastic, metal, slate, and household appliances Can lift curved objects such as bathtubs and washing machines Not suitable for ceramic tiles with uneven surfaces Installation Place the suction cup on a smooth, non-porous surface Pump the vacuum into the suction cup until the red warning line disappears Usage A red indicator line warns when the suction cup is losing vacuum To re-establish suction, use your thumb to suck the plunger