Self Cleaning Cat Litter Box Cover Replacement Part Accessory Door for Cat Compatibility: Cover replacement part for self cleaning cat litter box, specifically designed for automatic cat litter boxes with model numbers ranging from B0001 to B9999, ensuring a proper fit for your device Material Quality: This self cleaning cat litter box accessory is made from PP material, built to withstand regular use while maintaining structural integrity Compact Size: The automatic litter box accessory features a compact design, making it an efficient addition to your cat's litter box setup Package Contents: Includes 1 automatic litter box accessory; easy installation and replacement Note: Please carefully check the compatible models and product images to ensure you purchase the correct item Size: 33cm x 10.5cm x 7cm (12.99in x 4.13in x 2.76in) Package Includes: 1 cover replacement part for automatic litter box Note: Slight variations of 1-2cm (0.39-0.79in) may occur due to manual measurement