SEXTANT : This astrolabe sextant can be used to measure the angle between any two visible objects. It's primary use is to determine the angle between a celestial object and the horizon which is known as the altitude. This doubly reflecting navigation instrument is made of pure brass with antique finish a protective wooden case. INCLUDES TWO ADDITIONAL SIGHTING TELESCOPES. This celestial navigation compass for sailors is an essential nautical decor to welcome your boy friend, daddy loved ones with nautical parties. Adapts any special occasions like nautical baby shower . SIZE SPECIFICATION : Product Dimension: 12 X 11 X 6 cm | Wooden Box Dimension: 15 X 15 X 8 cm. Material: Brass | Finish: Antique USE : This working sextant instrument is a memorable navy gift for birthdays, anniversaries, valentine's day corporate functions. A great gift for maritime, nautical, hiking outdoor enthusiast Additional Details ------------------------------ Bullet point: ?? SEXTANT : This astrolabe sextant can be used to measure the angle between any two visible objects. It's primary use is to determine the angle between a celestial object and the horizon which is known as the altitude. This doubly reflecting navigation instrument is made of pure brass with antique finish a protective wooden case. INCLUDES TWO ADDITIONAL SIGHTING TELESCOPES. Product description: SEXTANT : This astrolabe sextant can be used to measure the angle between any two visible objects. It's primary use is to determine the angle between a celestial object and the horizon which is known as the altitude. This doubly reflecting navigation instrument is made of pure brass with antique finish a protective wooden case. INCLUDES TWO ADDITIONAL SIGHTING TELESCOPES. This celestial navigation compass for sailors is an essential nautical decor to welcome your boy friend, daddy loved ones with nautical parties. Adapts any special occasions like nautical baby shower . SIZE SPECIFICATION : Product Dimension: 12 X 11 X 6 cm | Wooden Box Dimension: 15 X 15 X 8 cm. Material: Brass | Finish: Antique USE : This working sextant instrument is a memorable navy gift for birthdays, anniversaries, valentine's day corporate functions. A great gift for maritime, nautical, hiking outdoor enthusiast