ZUOS 6" Mounting Vacuum Suction Cup with 1/4"-20 Female Thread, Small Hand Pump Glass Sucker for Car Camera 

• This 6" Suction cup mount base provides a super grip on almost any smooth nonporous surface including countertops, glass, metal and more. Mounts on cars, boats, rvs and many vehicles.
• The top of the suction cup base included an integrated 1/4"-20 female thread, eliminating the need for drilling holes when mounting equipment. The power Mount cup can carry a capacity of up to 70 lbs.
• Available in a range of styles to cover most applications and capacity requirements, they can be used to mount cameras, scopes, testing equipment, antennas, lights, signs, and much more.
• Pump the plunger a few times until the cup attaches completely. When the red line is hidden, vacuum is sufficient for lifting. A firm push or pull on the rubber tab at the edge of the pad can releases the mount. Supplied with pad protector to prevent damage.
• The vacuum suction cup through the CE, SGS, RoHS, PAHS certification. Warranty: 1 year 100% satisfied quality guarantee.