The hardness of an erection can be conveniently graded as above
1 – Tofu : soft and incapable of penetration
2 – Peeled Banana : stronger but still sub optimal for penetration
3 – Unpeeled Banana : capable of penetration but not optimally hard
4 – Cucumber : what every men wants !
Anything grade 3 and below will be considered as Erectile Dysfunction (either the inability to achieve a grade 4 erection or the inability to maintain an erection during intercourse). If you feel that your erection is not optimal or unable to last, help is available !