Are you in need of a reliable and versatile mounting solution for your photography or videography projects? The Kupo 6"" Metal Pump Suction Cup with a 3/8""-16 Thread is engineered to provide a secure and temporary attachment on smooth, nonporous surfaces. This robust suction cup is perfect for mounting small lights, cameras, grip gear, and various accessories onto surfaces such as windows, mirrors, automobiles, and boats.The 6-inch suction cup features a durable metal pump that enhances suction power, ensuring a strong hold even in challenging conditions. The innovative red-line indicator serves as a safety feature, alerting users to any vacuum loss, thus maintaining the integrity of your setup. Designed with an aluminum block, this suction cup is tapped with a 3/8""-16 thread on three sides, offering a flexible and low-profile mounting option. This makes it particularly suitable for attaching a camera ballhead, providing stability and ease of use.