Customizable Tool holder

Firstly, this is a customizable tool holder for every user. you can print any different size of unit. and assmble them together as my way shown below.The model i post is 6colums x 5layer size. it include:unit 1*1(20mm*20mm) 7pcsunit 1*2(20mm*40mm) 2pcsunit 1*3(20mm*60mm) 1pcsunit 1*4(20mm*80mm) 2pcsunit 2*2(40mm*40mm) 2pcsThis is just a standard dsign that i made, but you can create your own combinations. and show picture here for people to referance.Secondly, This is 45° hanging version of this