The 11 inch dildos look more powerful. Dildos of this size are generally thicker. In sex life, people pursue more hard, thick, and long. The hard dildo can guarantee the time of intercourse. The thick dildo can fill the entire hole, then, all surrounding nerves can be stimulated. The long dildo can reach the deepest part of the vagina and is more likely to bring orgasm. This is the biggest advantage of an 11 in dildo.

Anal Sex-All type dildo is ok. But the diameter is better to be smaller. Because the anus is relatively fragile. And the anal hole is slightly narrow. Much specialized glass anal dildo or anal beads are designed for anal sex.
Vaginal Sex-Similarly, all dildos are compatible. Because the vagina has very good contraction characteristics. Almost can contain most of the diameter of the dildo.https://www.hugedildo.com/11-inch-dildo/