1. The outside of the paper cup showed ripple.

2. Compared with the common paper cup there are two tier outside more protect, that is better to heat preservation and heat insulation, it will keep the coffeer which in the paper cup more time, and also it will not feel very hot when you hold the hot coffeer.

3. We have existing specs: 4OZ. 8OZ. 12OZ. 16OZ. 20OZ with lids.