The Hasselblad 55mm Extension Tube is designed specifically for the Hasselblad V system, allowing for closer focusing on subjects for macro photography. Made in Sweden, this twist-on unit is compatible with Hasselblad V lenses, providing photographers with a seamless way to capture stunning close-up shots. With its high-quality construction and precise design, this extension tube is a valuable accessory for any photographer looking to explore the world of macro photography.