Features: Products using ABS plastic, the mold injection molding, surface chrome plating, with self adhesive stickers for most flat and clean surfaces Clean lines and bright, widely used in room number, number of floors, bathroom signs, all kinds of number coding Specification: Usage: Outdoor/Indoor Available numbers: 0-9 Material: ABS Size: Approx.5CM/2inch Thickness :about 0.8cm/0.3INCH Color: Black Package Includes: 1 x Mailbox number self adhesive sticker Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-5mm measuring deviation due to manual measurement.