Pencil grip made in Morphi using tori. www.morphiapp.com The model is sized to fit a standard pencil and is positioned for optimal printing so no support is needed. We recommend printing in a flexible material (like Ninjaflex) that will be softer on the fingers.This is part of our Maker Education series where people of all ages and skill levels can learn about the basics of 3D modeling/design, printing and more. We will be releasing K-12 lesson plans for this model shortly. Stay tuned! In Morphi, users of all skill levels can make 3D printable objects on the go using touch, without wifi or a mouse. Download the app for free for iPad and IPad mini on the App Store. https://itunes.apple.com/us/app/morphi/id833530351?mt=8 Coming soon for Android! Copyright 2014-2015, The Inventery, Inc.