【 COMPATIBLE WITH 】-- for 13.5" Microsoft Surface Laptop 5/4/3 with Metal Palm Rest (2022 2021 2019 Release)，Model Numbers: 1868/1951. WARNING: This case is NOT compatible with other model series. 【 WARNING Not compatible with 】 NOT compatible with the 13.5-inch Surface Laptop 1 / 2 / 3 / 4 with Alcantara keyboard, all Surface Book models, all Surface tablet computer and any other non-Microsoft computer models. 【 PLASTIC HARD CASE MATERIAL 】Smooth Soft-Touch Finish ,Hard Shell Case with Rubber oil Paint for Rich Silky-smooth Soft-touch while Protecting your for Surface Laptop from everyday scrapes and scratches. 【 FUNCTION 】our anti-slip silicone feet at the bottom shell, it can keep your device firmly in place all the time ,Featuring of bottom ventilation, allowing safe heat disbursement to keep your device cool ,Featuring all-inclusive design to fully protect your device from drops, downs, scratches, etc from daily using.