Reliable material :These transparent container boxes are made of non- polypropylene material and non-fragile plastic, strong and , and the is smooth and tidy, and the contents can be clearly seen in the transparent container Bring 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. Secure 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 find Container dimension: each storage box is .1.7 x 1.7 x 0.79 inches () with 1 mm thickness, , and easy to carry.