Durable and rust resistant, made of high quality materials. Easy installation without tools, no drilling, no dirt. Strong magnetism with strong adhesive force. Multiple magnets needed to attach a window grid. Number of magnets depends on the size of the window. Wide application: suitable for the insect screen of the kitchen, office, living room, children's room, workshop, etc. Color: White. Material: Plastic. Size: 7.8 cm. Package Contents: 22 x Adhesive Magnets. Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and description, we have provided detailed information about the product, including its features and specifications. We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it.