Material: PP hard plastic, Food grade material. Weight: 60g per piece, 240g total External size: 17.4 x 9.8 x 2.2 cm Include: Transparent x 4 Multi-function design: Designed with 15 rectangular compartments and the compartment can be adjusted by pulling the plastic sheet. It can be used to store earrings, necklace, beads, finger ring or other small jewelry, also is used for storing nuts, screws or other small tools.