noun-modifying (irregular)
long-term usability; designed for extended use
Wasei-eigo term used especially in product marketing for items that can be used over many years or through a child's growth stages, such as car seats, furniture, or gear.
wasei-eigo (Japanese-coined English), from long use
This child car seat is designed for long-term use and can be used from newborn to around age 7.
Choosing furniture that can be used for a long time is economical in the long run.
Variant with interpunct; less common but seen in some product descriptions.
Wasei-eigo from English 'long' and 'use'. Not a direct borrowing from an existing English phrase.