
Marble 3D Monogram Initial I
Originally modelled in-house as a monogram keychain, this marble-textured initial I comes with a commercial license to print and sell. Preview the 3D design with the included GLB, then download the STL for your own production.
Instant download after checkout — GLB + STL. Yours to keep. Original Apex design.
Or save with a themed 3D pack — more models, one price. You own the files.
How to print it
From download to finished print: open your STL, drop it into your slicer, and print an Apex 3D model — settings, orientation and one-piece flexi tips.
Step-by-step: after you buy, where your files land, how to open your download link, and how to get your Canva / Notion / STL / sticker files onto your device.





