General description Set of 2 professional window suction cups designed for transporting and moving windows, tiles, glass, bay windows, plates, and floors. These industrial-grade suction cups are ideal for handling furniture and other heavy objects, making your tasks easier and more convenient. Technical specifications Material: Thickened ABS engineering material Design: Ergonomic, non-slip handle Safety feature: Red line indicator for air leakage Installation Place the suction cup on a smooth surface free of water or oil. Press the pump firmly to vacuum the air. Press several times until the red line disappears. Let it sit for 2-3 seconds before lifting the object. Usage Ideal for moving tiles and adjusting them accurately. Facilitates the transportation of marble blocks without scratching your fingers. Quickly remove the suction cup by grasping the edge after completing the job.