The objects on Tessa's Curated Boutique are available in 2 forms: digital and physical. The digital items are LEO (Limited Edition Object) files that are delivered via download from your account's "My Downloads" page. The physical items are a 3D print of the LEO. The production is done by third party, LEO-compatible, 3D printing service providers (you will choose your preferred provider, seeing the price offerings, as part of the check out process). The provider will ship the physical object to you based on his delivery policy (see your chosen provider's Terms & Conditions for details). Either way, by choosing a LEO (digital or its physical object) you acted responsibly and fairly: minimizing shipping and fairly compensating designers. Congratulations!
For more on LEOs and how designers can use them, please visit Make it LEO.