Super strong vacuum with improved size. Due to the larger size, the air volume can be captured in and the vacuum is large. You can enjoy a roomy deep insertion with the super vacuum Ultra-hard design with a sharp and stimulating design with special details and hard gel for a crisp and stimulating pleasure. Experience powerful tightening & vacuum with the newly born hard type U.S.TENGA. About the Size: This product is designed to be approximately 1.6 times the volume of the regular size cup series, but it is not a cup specifically for larger sizes. Even those who feel regular sized cups just right, this cup series can enjoy a spacious and deep insertion experience with a large capacity vacuum.