We recommend using Milli in a way that is most comfortable for you. Rotation is not necessary when using Milli. Insert Milli to a depth that feels right to you and increase size-by-size at your own pace.

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What does gradual, adjustable sizing mean and why does it matter?

Gradual sizing refers to the incremental size adjustments that occur from the wand area of Milli, which increases and decreases in diameter size. T...