Durable and stable mounting - This flag mast holder is made from aluminum alloy and rubber to provide a secure, stable fit on flat surfaces such as cars, motorcycles, vehicles, or any other smooth surface. It stays steady even in rough conditions. Product specifications - Mounting hole diameter: 2.1 cm (0.83 in) - Overall dimensions: 16.2 cm x 11.8 cm x 9.5 cm (6.38 in x 4.65 in x 3.74 in) - Package includes: 1x flag mast holder with suction cup Portable design and easy installation - The suction cup mounting method allows portable, drill-free use. - The base uses two strong suction cups with a release switch at the base to open the cups, ensuring a firm installation without drilling. Versatile compatibility - Suitable for all flat surfaces including outdoor sports fields, cars, motorcycles, SUVs, pickups, trucks, RVs, campers, trailers, and houses. Use scenarios - Display a flag or banner on a vehicle during outdoor events, parades, or road trips. - Temporarily mount on a car, SUV, or RV at campsites or parking areas to display signals or decorations. - Set up quickly on flat surfaces at home, driveways, or sports facilities for team or event signage.