Description: High quality ABS structure: capable of withstanding pecking and dropping, maintaining integrity during chicken pecking, maintaining good condition during movement and installation, and maintaining good condition after long-term use Precise Separation: Double bucket design with clear printed labels to separate sand particles from for oyster shells. This avoids accidental ingestion and mixing of chickens, ensures accurate supply of each nutrient, and supports high-quality chicken flocks Automatic filling: The tower storage device with automatic falling design allows the feed to fill the base by itself. No need for frequent supplementation, saving time and energy Flexible installation and versatile use: This package includes screws and zip ties for installation. It can be nailed to walls, wooden boards, or tied to fences, making it easy to install in chicken coops or outdoor ranches. Adapt to various breeding scenarios and effectively utilize small spaces Scientific feeding promotes health: These two feeders can clearly distinguish between coarse sand and for oyster shells. They meet the different nutritional needs of chickens, help with digestion, strengthen eggshells, and maintain chicken vitality Specification: Color: white. Material: ABS. Size: Approx 25*11.5cm/9.84*4.53inch. Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package Includes: oysters shell feeder*2