Description The rectangular glass block is a physical optical experimental equipment for teaching. Designed for physics optical experiments and teaching, helping students better understand the principles of optics. The glass block has a uniform surface, reducing reflection and improving the accuracy of experiments. Features -Color:As Shown-Material:Glass- Size: 7.50X3.90X1.50cm/2.95X1.53X0.59in -Ideal for conducting physics optical experiments and teaching, this rectangular glass block is versatile and essential for educators and researcher.-This glass block minimizes reflection and ensures enhanced accuracy, making it perfect for precise measurements and observation.-The rectangular shape of this glass block offers convenient operation, allowing users to easily perform various experiments and demonstrations.-Crafted from glass, this glass block is not only sturdy but also comfortable to touch, ensuring long-lasting use.-Designed to cater to the needs of laboratories and physics experiments teaching, this glass brick is a reliable instrument for teaching purposes.Packing list: 1 x Rectangular Refraction Block