5/8" Building Box Retainer Cases
Building Box retainer cases are as fun as they are practical
Patients of all ages will love the classic style and colors of 5/8" Building Box Retainer Cases. A timeless favorite, they are fully compatible with LEGO®-style blocks for extra fun. Multiple cases can be connected into one unit to keep appliances together. Durable, vented plastic cases measure 3"W x 2-1/4"L inside and 5/8" deep. 12 per pack in assorted blue, red, and yellow colors.