QWORK® 12 Pcs Suction Cups with Knurled Nuts 30mm Secure Screw Sucker Pads for Window Signage, Acrylic Panels & Smooth Surfaces

[SECURE SCREW FIXING]: Features an integrated threaded bolt and knurled thumb nut to lock signs or panels firmly in place, providing a mechanical grip that prevents items from slipping or falling. [HEAVY DUTY PVC MATERIAL]: Constructed from reinforced, transparent PVC for long-lasting suction. These clear pads blend seamlessly into any environment, maintaining a clean look for your home or office. [VERSATILE SURFACE COMPATIBILITY]: Designed for smooth, non-porous surfaces including car windshields, mirrors, kitchen tiles, and refrigerators. Ideal for hanging garlands, parking discs, and organizers. [DRILL-FREE INSTALLATION]: Simply press onto a clean surface and tighten the nut. This reusable, non-marking solution allows for quick repositioning without leaving sticky residue or damaging surfaces. [COMPLETE 12-PIECE SET]: Includes 12 individual 30mm diameter suction pads with matching nuts. For maximum adhesion, ensure the contact surface is dry and free from dust before application.