Condoms are not strange for adults, also known as condoms, condoms, is currently used as a male contraceptive universal tool, a length of about 19 cm, distal end has a length of about 2 cm of seminal vesicle, is sex sperm storage place; the proximal opening (a) there is a slight the elastic rubber ring, the sleeve has tight penis on the penis effect. What type of condoms?
Condom specifications according to opening size can be divided into large, medium and small, small and other four types, the opening diameter of 35 mm to 33 mm for large, medium (Zhou Changyue 104MM, 52MM, 31 mm width) for trumpet, 29 mm xs. Users should choose the appropriate model based on individual circumstances, such as condoms during sexual intercourse is too large, easy to fall off in the vagina, cause contraceptive failure; if the condom is too small will have discomfort, but also easy to break. Generally speaking, the initial use of condoms with medium, such as inappropriate and to large or small, small.