This creates a kind of structure-improved of condom,Specifically include that a condom ontology,One end has an opening,The other end has a seminal vesicle,Its characteristic is in what: the small tapering of a tapered diameter is formed between the condom ontology front end and seminal vesicle,And ring is provided with plural pillar and constitutes and from the extended single diameter in tapering and connect the column portion of opening on the edge face of tapering,And ring is provided with plural pillar and is constituted on the face of tapering lateral margin and on the straightway in column portion,The plural number pillar is arranged in multilayer,It is surround arranged distribution what ontology tapering surface and column portion surface,And the more other layers of plural number pillar of position what bottom are intensive,Thereby,In addition to increasing sexual behaviour massage sense of touch and pleasant sensation,More increase the range of massage when sexual behaviour carries out,And it can the different what conventional construction increase output value.本創作一種保險套之改良結構，主要包括：一保險套本體，一端具有一開口，另一端具有一儲精囊，其特徵在於：該保險套本體前端與儲精囊間形成一直徑漸縮小之錐部，而錐部緣面上環設置有複數凸柱所構成以及自錐部延設單一直徑並連接開口的柱部，而錐部側緣面上以及柱部之直線段上環設置有複數凸柱所構成，該複數凸柱呈多層設置，環繞排列分佈於本體錐部表面以及柱部表面，並且位於底層之複數凸柱較其它層密集，藉此，除了增加性行為按摩觸感及快感，更增加性行為進行時按摩的範圍，並能有別於習知結構增加產值。
