So I keep saying i'm using Arckit but what exactly is it I hear you ask. Well some people have been calling it grown up Lego, in a way thats right. There both modular building tools that click together with no glue. Though where Lego is mostly blocks the Arckit parts are based on real world panelled building components. There's doors, several different types of windows, walls, glass panels, floor tiles, roof panels. As for instructions...well you get a booklet with one or two ideas but its really up to you and your imagination.