About this 3D model

An adapter to put in the glass hole in your patio table so smaller beach umbrella can fit in them without wigglin' all about. First thing I've made for a purpose, just got into 3D (not to mention, 3D printing!) so thanks to Mere & Lochemage for telling me where I screwed up. Edit: New version for David is 1.38" to 1.5" with a 2" stem as two pieces.