Reliable material :These transparent container boxes are made of non-toxic polypropylene material and non-fragile plastic, strong and durable, and the surface is smooth and tidy, and the contents can be clearly seen in the transparent containerSecure and useful: this storage organizer box with hinged lid can separate and organize items, make them easy to identify, not only easy to store, but convenient to see the stored items in the inner box, which is easy to findBring convenience: you can use it to hold small parts, business cards, jewelries, game pieces, face coverings, hardware, etc., you could also use a pen to mark these boxes with numbers or dates to make your storage more interesting.Container dimension: each storage box is approx.1.7 x 1.7 x 0.79 inches (LWH) with 1 mm thickness, lightweight, durable and easy to carry.size:4.3 x 4.3 x 2cmMaterial:plasticcolour:TransparentPackage Contents:30 x Storage BoxOnly the above package content, other products are not included.Note: Light 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.