The stretchable elastomer concealed within each of these discreet eggs expands drastically for a snug fit regardless of your size. The one-time-use sleeve comes with lubricant inside the egg container. Made of TPE, a body-safe elastomer. They make for great travel companions. The texture shown on the package mirrors what the sleeve texture is like inside. 

While these say one time use, we say use them until they tear. They can be washed.

Regular Tenga Eggs are very soft with a lot of stretch. Hard Boiled Tenga Eggs are a firmer material with thicker inner surfaces, bolder edges, and tightly packed details.