"宅配便" (takuhai-bin) refers to a delivery service in Japan that transports packages directly to customers' homes or businesses. This service is popular for its convenience, allowing people to send and receive items without needing to visit a post office or delivery center. The system is widely used for various purposes, including sending gifts, online shopping orders, and important documents. Major companies like ヤマト運輸 (Yamato Transport) and 佐川急便 (Sagawa Express) dominate the market, providing reliable and timely delivery options across the country.