Mosiso via Amazon cuts 40% off a selection of its laptop cases for Apple MacBook Air and MacBook Pro via coupon code "YNHRRHFH", as listed below. Plus, Prime members receive free shipping. Only the following colors are in this promotion: Black, Rose Quartz, Marsala Red, Rose Gold, Serenity Blue, Airy Blue, and Crystal Clear. Coupon ends May 10. The deals, with starting prices after the coupon:

• Mosiso 13" Hard Plastic Case for Apple MacBook Air with a keyboard cover and screen protector (Aqua Blue pictured) from $7.19
• Mosiso 13" Hard Plastic Case for Old Apple MacBook Pro with Retina Display with a keyboard cover and screen protector from $7.19
• Mosiso 13" Plastic Hard Shell Case for MacBook Pro with/without Touch Bar with a screen protector for $9.57
• Mosiso 15" Plastic Hard Shell Case for MacBook Pro with/without Touch Bar with a screen protector for $11.39

Check the product page to make sure that the case is designed to fit your system.