Features: Durable and rust resistant: Made from high-quality materials to ensure longevity and resistance to rust. Easy installation: No tools required, no drilling, and no mess. Strong magnetism with powerful adhesive force. Multiple magnets required: Number of magnets needed depends on the size of the window grid. Wide application: Suitable for insect screens in various places such as kitchens, offices, living rooms, children's rooms, and workshops. Color: White. Material: Plastic. Size: 7.8 cm. Package contents: 22 x adhesive magnets (only the listed items are included; other products shown are not part of the package). Note: Due to lighting and differences in displays, the color of the item in the picture may slightly differ from the actual product. Allowable measurement error is +/- 1-3 cm. Shopping advice: Please check product size and dimensions in the title to ensure it meets your requirements.