1. Star Map: This map provides astronomy enthusiasts a clear guide to learn about constellations, bright stars, and deep space objects such as nebulae, galaxies, and star clusters. Polish your star gazing skills with this essential tool. 2. Easy to Use: Simply align the date and time, and this rotating star map show you the night overhead. It's user friendly and great for beginners and advanced astronomers alike. 3. Great Telescopic Companion: Whether you're using a telescope, binoculars, or just your eyes, this star map is an excellent accessory for your astronomical observations. 4. Wide Range: Designed for use within the 30 degree to 50 degree northern range, it can be used regardless of the calendar year. Enjoy unhindered star gazing all year round. 5. Educational Tool: The star map displays the locations of 100 star clusters, nebulae, and galaxies. It's the ideal aid for observing these heavenly bodies through a telescope or binoculars. Item Type:Star Map Guide Colour:Black Material:cardboard Package Contents: 10 x Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.