The most versatile (and most popular) Blender, the 20mm is where it all started, now better than ever.
Default 20mm Blenders are 1.6 inches from stem to dish, talls are 2.1.
Upper rim: 16 inner diameter, 20 outer. Recommended 17-20mm marbles, 25mm Apex Cap.
Spheres: 6mm+ spheres will spin without hitting the channels. Large solo spheres up to 12mm work. And a ton of other stuff.
Please allow up to 1 week for processing. Most orders will ship within 24 hours.