Let's Play In So Many Ways! A 3-In-1 Montessori Box That Grows With Your Baby From 4 To 12 Months.. Our starter set teaches the child that an object is still there even though she cannot see it through Piaget's Theory of Object Permanence. The lids and parts can be changed to suit 3 different play patterns that progressively learn this theory: a ball drop using a half lid, a ball drop using a full lid, and a coin drop.. Our Montessori Boxes Are. Modular - a modular box that can be used over and over again with the other kits. Minimal - the entire 8 kits can fit up to 2 shoe boxes making it storage and luggage-friendly. Eco-friendly - using sustainably sourced trees with a high new growth rate and low harvest rate. Curated - follows a clear, curated learning path meeting circular reactions, early maths, and critical preschool skills. The Starter Kit Includes. 9 wooden pieces:. 3 lids. 2 balls (45mm). 3 coins (45mm x 5mm). 1 modular box (130 W x 130 D x 130 H cm). Our Cubo Montessori Box has been nominated as one of the Top 100 Green Concepts in 2024 by an internationally sought and highly sophisticated sustainability award by Green Product Awards.