This pen and notebook was constructed from photo reference and is accurate to world scale and dimensions. We offer a huge selection of commercial and educational 3d software and plugins. We are authorized dealers for Trimble SketchUp, V-Ray, ZBrush, Lightwave, Cinema 4d, Rhino, all Autodesk products, Itoo’s Forest Pack & Railclone plugins, Cebas plugins, Evermotion collections, Dosch collections, AXYZ 3d human collections & Anima. We offer training of 3ds Max, SketchUp, V-Ray for Max, V-Ray for SketchUp, V-Ray for Rhino, and Photoshop. Our retail sites are https://trinity3d.com/ & https://vray.us/ We at Trinity Animation hope you enjoy our products.