About this 3D model

I bring you a CR2032 Battery Holder for the Babo Organizer System created by Willi 3D . It holds up to 4 batteries and is designed to fit a 1x1 space in this system. (30mm x 30mm x 30mm) I have also created a insert model that will fit inside a pre-existing 1x1. The link is here if you already have a 1x1 insert printed and did not want to print another box. This is my first 3D Model I have ever made so any feedback would be greatly appreciated. :)