Durable felt construction Made from quality felt, these liners provide stable support and a solid foundation for thriving plants. Ideal for gardeners who want reliable containment and longlasting performance. ventilation and drainage Designed to retain soil and moisture while enhancing airflow and drainage. This creates a healthier root environment and supports longterm plant development. Bird nest prevention design Advanced barrier properties deter birds from nesting in window box baskets, improving usability and reducing maintenance naturally. Versatile outdoor use Suitable for balcony gardens and home gardening projects. These liners enhance landscaping and greening efforts with multipurpose functionality for creative outdoor spaces. Use scenarios Balcony herb and flower display: Install liners in window box baskets to stabilize soil, manage moisture, and keep birds out, supporting healthy growth for herbs and seasonal blooms. Patio container arrangement: Use liners in window boxes to improve soil retention and airflow, helping flowering plants thrive in outdoor containers. Urban window box decoration: Employ liners to maintain tidy, soilsafe planters for decorative plantings while preventing bird nesting and simplifying maintenance.