RK cups are a line of translucent, american made drink cups consisting of twelve sizes ranging from 3 to 32 ounces. Strengthened by attractive sidewall ribs (most sizes), RK cups are a lightweight and affordable beverage packaging option. Benefits: Unsusceptible to flavor or odor transfer; Reduced transportation costs and environmental impact; Easy practical fill identification and portion control; Labeling space for branding opportunities; Safe and comfortable drinking surface; Leak resistant snap fit lid application and removal.