Technical patent drawings for toy building blocks are arranged in a clean grid layout, showing multiple isometric views and cross-section details of the iconic interlocking brick system. Black line work on a cream background creates a precise, architectural quality that celebrates the mechanical ingenuity behind a beloved childhood toy. Constructed from woven polyester with a soft microfiber lining and a sturdy zipper, made to order for 13 and 15 inch laptops. Everyday protection carrying an independent artist's work, not another plain black sleeve.