General description This 3-inch concave vacuum cup is designed with a heavy-duty hand pump, providing exceptional suction power for secure and reliable attachment to various surfaces. It is ideal for applications in industries such as glass handling, woodworking, and automotive repair. Technical specifications Diameter: 75mm (3 inches) Type: G3/8 Material: Plastic and Metal Measurement allowed error: +/- 1-3cm Installation Simply place the cup onto the desired surface. Use the hand pump to create a strong vacuum seal. Usage Ideal for lifting heavy objects. Suitable for working on delicate surfaces. Provides strength and precision for various projects. Other information Package Contents: 1 * Suction Cup Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.