PULUZ PU844B 3 Inch Suction Cup Mount Quick Release Aluminum Alloy 30kg Horizontal Suction Force with 1/4 Inch & 3/8 Inch Screw Holes

Strong adsorption, not afraid of high speed, the suction cup is still stable under high speed driving, which is safe and secure., The air pump vacuum suction cup adopts industrial grade air pump, which has greater adsorption force., Equipped with multiple 1/4 inch & 3/8 inch threads to achieve easy expansion., Made of aluminum alloy material, processed by CNC, feels good. Small and portable, durable., Press adsorption: press the air valve until the red line cannot be pushed. Release the adsorption: Use your hands to move the raised rubber blocks on both sides to release the adsorption.