R1 Shaker Cup
I got this bottle as part of a promotion and am happy to have it. It's different than I was expecting, though that was my misunderstanding. I thought it was more like a standard blender bottle, but this doesn't have a blender ball in it; rather, it has a little plastic grid at the top that looks kind of like a wide fruit juicer. Totally my misunderstanding, but thought I would add this note of clarification for others who may be similarly confused (though I freely admit that I may be one of the few people unaware of the recent design changes to shaker cups).