Features1. Made of pure imported PC materials2. The material is environmentally friendly, non-toxic and odorless.3. Tailor-made according to physical reference, novel and fashionable design4. The compact body of the protective cover can be twisted arbitrarily but not easily deformed or broken5. Waterproof, drop-proof, scratch-proof, dust-proof and durable6. A variety of colors to choose fromNotification: This Is Very Important !!!Dear customer, please DOUBLE CHECK your model numbers in the list below to match the size before ordering any laptop cases ( you can always find your model number on the laptop back). This hard shell cases are specific designed only for Macbooks; please dont use for other laptops. If you are not sure the about your model number, you can always contact us. We will be glad to help you to find a suitable case.① 4 STEPS TO INSTALL THE CASETop Shell Installation01: First to hook up the side with knots NO1 and NO2 to the open side (check the power light direction), secondly put down the side with knots NO3, 4, 5.02: Use your hand to push down the Knots NO3, NO4 and NO5 one by one, if you did it correctly, you will hear the sound three times.Back Shell Installation03: First to hook up the side with knots NO8 and NO9 to the open side. Secondly put down the side with knots NO6 and NO7.04: Use your hand to push the knots NO6 and NO7. If you did it correctly you can also hear the sound twice.9 KNOTSThere are 9 Knots on the case, 5 knots on the Top Protective Shell and 4 knots on the Back Protective Shell. They are used to hold up the laptop. To easily install the both Protective shells you can follow the next 4 steps.ULTRA THIN / PLUG IN SLOTSOnly 1mm thin each hard shell, but strongly protect your laptop / The hard shell cases have prefect plug in slots spaces for you to easily plug in all you accessories.② 4 STEPS TO TAKE OFF THE CASETop Shell Removal01: First to remove the knots NO5, NO4, NO3, you need to buckle down to take off these three knots.02: When Knots NO5, NO4, NO3 were unhooked up from laptop, you can easily remove the case.Back Shell Removal03: First to remove the knots NO6, NO7, you need to buckle down to take off these two knots.04: When knots NO6, NO7 were unhook up from laptop, you can easily take off the case.COLORS VS ENVIROMENTThe colors of laptop protective cases will change in different circumstances. The environment colors and light colors will affect the color change. The examples show on the picture below----01: Day Light environment / 02: Rainy environment / 03:Sunset environment / 04: Night environment / 05: Red light source / 06: Green light source / 07: White light source / 08: Studio. Due to the color change caused by the environment, we are looking for a way to show the true color of our products to give our customers the best shopping experiences. At last we decide to use the professional photo studio(8)to take the pictures to show the product colors as much close as our eyes generally recognized. Suggestion: Day light and white light environment will provide best experience in reading the colors.Laptop Case For Apple Macbook 11 12 13 15 16 Inch For M1 Chip Pro 13 A2338 For New Air 13 A2337 A2179 Crystal Protective CoverShipping and Packaging All items will be double checked and well packed before sending.Items will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer). Special Announcement:Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resolve the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .ReturnIf the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in goodcondition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.If you are not satisfied with our products or services, please let us know and give us an opportunity to correct them. We will definitely let you experience our intentions and persistence. Thanks again for coming. Your presence is your trust in us and your greatest support. We cannot live up to this trust. We will do our best to help you solve problems and make you 100% satisfied. Your satisfaction is our eternal pursuit. Finally, thank you for choosing our store. I wish you a happy shopping and a happy life. Thanks for coming!