These Lego blocks are actually storage boxes –

LEGO Sorting Box to Go Travel Case Organizing Dividers Green toy bricks storage

LEGO Sorting Box to-Go Travel Case with Organizing Dividers

4 Tray Toy Blocks Sorter Sifter, Cute Portable Storage Brick Box for Lego Blocks, Three Different Size Sorter Perfect for Multiple Building Blocks, Gift for Kids, Teens and Adults (Yellow)

4pcs. LEGO System Sorting Box Organizer 12.59x7.87x3.14 Inch Stackable Storage Building Construction Case Red Blue Vintage 60s70s

Room Copenhagen, Lego Sorting Box - Brick Storage with Organizing Dividers - Iconic Red, Building Sets - Canada

LEGO SORTING BOX TO GO

Found these wonderful Lego sorting trays at Harbor Freight! : r

Lego Storage And Sorter Box: Keep Those Legos Out From Underfoot

LEGO 8 Knobs Brick Storage Box with 2 Drawers - Bright Yellow

WOODEN LEGO SORTING TRAYS Wooden LEGO Sorting Trays & Creative