I also live with a cat. I learned that the "Cat in the House" sticker means, "There's a cat in the house! Please help!" in case I get into a car accident and can't get home. I really wanted to put one on my car too! But, I couldn't find a design I liked, so I had one made for me at a factory in Okayama. These are magnet-type stickers (2 of the same design). They can be attached and removed. They use a durable, thick magnet, and the corners are rounded to prevent them from easily peeling off. Please read the "Important Notes for Using Magnet Sheets" below. 《Size》 10cm x 10cm 《Quantity》 Set of 2 of the same design 《Specifications》 Magnet (sheet type) 0.8mm thick and sturdy. The corners are rounded to prevent easy peeling. Can be attached to a car and driven. 《Shipping Method》 Yu-packet Post mini *If you prefer a different shipping method, please let me know before purchasing. 《Discounts》 We do not offer discounts on single items. If you purchase multiple items, we will discount the shipping cost for combined shipping. As a guideline, the discount will be 160 yen off for each item from the second item onwards. This may vary depending on the product, so please feel free to ask any questions in the comments. I am a beginner, but I strive for quick and courteous transactions. If you have any questions, please feel free to contact me anytime. ◆Important Notes for Using Magnet Sheets◆ (For safe and correct use) ① Before use, clean the back of the product and the surface it will be attached to, and dry them thoroughly. Rust may occur if moisture remains. ② Do not leave it attached for extended periods; remove it about every other day. ③ Do not attach it to places that become hot and humid. At temperatures of 50°C or higher, it may become difficult to remove due to heat. ④ Attach this product to a surface where the entire sheet can adhere, and do not attach it to uneven surfaces. It may easily peel off. ⑤ Please understand that we are not responsible for any problems that may arise from incorrect use.