Features: New environmentally friendly materials are safe and odorless, with 0 formaldehyde and 0 odor. Daily use is harmless to health New stainless steel material, overall widening and thickening, stainless steel anti falling buckle, 360° full body reinforcement Multi layer design grid format storage compartment, where large tools and small parts are not mixed together: large tools have a large space underneath, while small parts have classified compartments Strengthening the reinforcement structure: the mechanical reinforcement of the box bottom and cover has stronger load-bearing capacity and is less prone to deformation The overall thickened stainless steel box surfaces bears amazing weight, is resistant to falling and smashing, and the upper cover and bottom are raised with high rebound PP material, making the structure more stable Specifications: Material: Stainless Steel Size：approx 15in 370×200x190mm/14.6x7.87x7.48in 19in 425x230x210/16.73x0.91x0.83in 21in 500x240x210/19.7x9.45x8.27in Quantity: 1PC Package Includes: 1PC Tool Case note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you