What is box kit inventory?

Excuse me, could you please clarify what exactly is meant by "box kit inventory"? I'm trying to understand if it refers to a specific type of inventory management system or if it's simply a term used to describe a grouping of products or items packaged together in a box. Is it a common practice in the industry or a more niche approach? And how does it differ from other inventory management methods? I'd appreciate any insight you could provide on this topic.