It can be drunk 360 degrees from all sides of the glass. It does not spill. It does not spill when tipped or turned. It does not spill. It is kept clean with a protective cover. It encourages the transition to self-feeding. The drinking disc is made of soft silicone, the other parts are made of high quality polypropylene. Made of BPA and BPS-free polypropylene. Made in Germany. It is recommended for drinking thin liquids. Dark liquid foods such as soup and ayran may have difficulty in passing through the nutrition disc.