build-it-yourself kit

noun
UK /ˌbɪld ɪt jɔːˈself kɪt/
US /ˌbɪld ɪt jʊrˈself kɪt/

A set of parts you put together to make something.

My dad bought a build-it-yourself kit to make a small bookshelf.


OTHER MEANINGS

2. A package sold for learning electronics by assembling circuits.

The science class used a build-it-yourself kit to make a blinking light.

3. A furniture package that comes in flat pieces for home assembly.

We saved money by choosing a build-it-yourself kit for the new desk.

4. A toy set that lets children construct models like cars or robots.

She got a build-it-yourself kit and made a toy robot in an hour.