Fits all 10-frame equipment. Technopolymer construction will not rot, never needs painting, no assembly, ready to use. Clean, contemporary design looks great in any apiary or garden. Lightweight and easy to handle. Made in USA from recycled materials. Double wall construction with internal air space insulates hive to keep hive cooler in summer; warmer in winter Passive ventilation system improves airflow for more honey production. Reduces moisture for healthier bees Built-in drip edge keeps hive and hive components dry for longer life[tab]Weight2.8lbsDimensions 23 19 2.5 in