I was traveling in South Africa for 2 weeks on vacation with a very busy schedule. I took all the adapters that were listed for S.Africa, Swaziland, Zimbabwe and Botswana. One adapter would not fit in the outlet as it was recessed but I had another adapter of the 4 I took with me that fit a different outlet in the bathroom. It turned out that 90% of the time I used the large S.African adapter.