Durable shell made from PU, EVA, Protective Foam, and Anti-Scratch Nylon Embedded AirTag storage for loss prevention Attached carabiner ring for USB or keys Elastic bands secure all four corners when traveling and bottom two when in use Compatible with New MacBook Pro 16 inch M3 Pro, M3 Max and MacBook Air 15 inch M2 2023, MacBook Pro 16 inch A2485 M2 Pro, M2 Max 2023M1 Pro, M1 Max 2021, A2141 2019, MacBook Pro 15 inch A1990 A1707 2016-2019 A1398 2012, Galaxy Book Pro 15.6 inch, LG Gram 360 16, most of 15 inch to 16 inch laptops for Acer, ASUS, HP, Dell, Lenovo, Samsung. Internal Dimension 14.7 x 10.5 x 1.1 inch