Dear Sir, Welcome again at icliniq.com. Thanks for providing me detail about your query as you have completed your family and quite educated so i think you have read my previous answer which i have written in very much detail about normal morphology ofI would like to again give you the information regarding PENIS SIZE THE NORMAL SIZE/LENGTH OF PENIS DIFFERS ACCORDING TO RACE AND ETHNICITY SO IN AVERAGE FOR SETTING ITS RANGES FROM 3.2 INCHES (8 CM) TO 5.5 -6 INCHES (15.2 CM) IN ERECTED FORM--SO I THINK IN YOUR CASE ITS IN QUITE NORMAL RANGE AND EVEN IN LARGE SIZE RANGE so I can't understand that why you wanted more bigger size as you already have big size. I WOULD LIKE TO TELL YOU THE FACT THAT PENIS SIZE IS NATURAL AND CAN'T BE INCREASE BY ANY MEAN, AS IN YOUR CASE YOU ALREADY HAVE NORMAL SIZE AND ANYTHING SMALL OR BIG THAN NORMAL RANGE WILL BE CALLED AS ABNORMAL, I THINK YOU WILL GET MY POINT NOW. SO FIRST I WOULD LIKE TO SOLVE YOUR QUERY POINT BY PINT AS YOU HAVE ASKED AND LATER ON I WILL TELL YOU ABOUT YOUR MAIN PROBLEM 1)- There are no medicines, gel, oil and cream that can increase the size of penis, all advertised material can be FATAL and FAKE to make money, "SO ALWAYS BEWARE OF SUCH PRODUCTS"Even these type of product can harm you and cause severe reaction to your genitals, they some added carcinogenic agents which can causes cancer and severe allergic reaction. 2)- There is nothing such thing like ring for penis, tying ring around penis can occlude blood vessels of penis, as you no penis is vascular and muscular organ. the erection of penis totally depend on blood flow in the penis if you will try to tie ring then it will occlude the blood vessels and and can cause necrosis/gangrene to your penis and CAN CAUSES ERECTILE DYSFUNCTION as well 3)- This is main problem I think you are suffering which can be called as PRE- MATURE EJACULATION as early ejaculation during sex and your wife couldn't satisfied.However you mentioned it lasts for 10-15 minutes which is quite sufficient if this time is after vaginal penetration (NOT INCLUDED FOREPLAY, only vaginal intercourse),However you have not mentioned here that this time is total sex time or only included after vaginal penetration??If this time 10-15 minutes included only vaginal penetration (Vaginal intercourse) time then its quite sufficient time, if your wife is not getting orgasm or satisfaction then your wife should be consulted and if 10-15 is for whole sex time (INCLUDING FOREPLAY) then this can be called as PRE MATURE EJACULATION (EARLY EJACULATION). So now i would like to tell you the treatment for this problem if you have kkas most of time early ejaculation depends on our mental state if we are anxious type then these type of problems happens so it is most time happen secondary to anxiety features so first you have to control your anxiety symptoms by relaxations techniques, breathing exercises.second you can start some exercise for premature ejaculation (ejaculation on little stimulation) like "START-STOP TECHNIQUE" in which whenever you go for toilet just after starting, you stop your micturition for 3-4 seconds and then again release and repeat this for 4-5 times whenever you go for toilet you will definitely feel improvement.second thing sex is a process between two people so always both partners should be involved in therapy kk so ask you wife to divert your mind whenever you reach the climax it will also increase the timings this is known as DISTRACTION TECHNIQUE. KEEP IN MIND THAT MOST OF TIME FIRST EJACULATION IS ALWAYS EARLY, SECOND WILL INCREASE ITSELF (during sex second time in same period)Others i would like you to suggest you if above things will not get work for you then you can go very short acting medication like DAPOXETINE 30 mg, 1-1.5 hr before intercourse this will increase some duration.You can use long last condoms which are available in market very easily as you also have completed your family but they should not be used very often as they can cause harm in long run.Beware of any kinds of cream, gel, lotion for to increase the time For to orgasm of your wife you should involve much time in foreplay like kissing, cuddling and stimulation of breasts and clitoral stimulation by your finger also this will help to achieve ORGASM of your wife. I think i have given much insight in your problems. your further queries are welcomedThanks with regards