What is this? The display storage boxes are made of ABS frames and flexible TPU film, lightweight, durable, with great elasticity, and high transparency. Are there any advantages of the product? The frame display case makes your jewelry float between two flexible transparent films, adding a 3D suspending effect. Sealed to prevent the jewelry from collisions and scratches. This display case is not only for ring necklace bracelet earrings, it can also be used for coins, stamps, etc. How to use it? Due to the clasp frame design, simply push and open the jewelry storage box, place objects between the clear film and adjust the position, close the box. What should I notice? All size is measured manually, please allow +/-0.1 inches error.