Designed and molded exclusively for theLenovo ideapad S540 15 S540-15IWL/ideapad S340 15 S340-15IWL S340-15API/ideapad 330S-15IKB 330S-15ARR/ideapad 530S-15IKBLenovo ideapad S540 15 S540-15IWL/ideapad S340 15 S340-15IWL S340-15API/ideapad 330S-15IKB 330S-15ARR/ideapad 530S-15IKBLenovo ideapad S540 15 S540-15IWL/ideapad S340 15 S340-15IWL S340-15API/ideapad 330S-15IKB 330S-15ARR/ideapad 530S-15IKBIt adopts a full inner lining design, and its size and port holes are consistent with the universal model., eliminating the sway and offset issues found in universal models, providing exclusive protection for your laptop. Heat-dissipating lining protects laptop performance: The lining is made of a breathable, heat-dissipating material that reduces heat buildup during laptop operation. This prevents the laptop from stuttering due to overheating. This combines protection with stable device function, making it ideal for people who work on their laptop for long periods of time. Warning: NOT compati