Tenkai palm

The Tenkai palm is a card magic technique used to palm a card (to temporarily hide it during a magic trick).

A card concealment invented by the Japanese magician Tenkai, whose real name was Teijiro Ishida (Dec 1, 1889 - ????). In the Tenkai palm, the card is lengthwise in the hand but is not flat against the palm; the card instead is held between the thumb which lies below and parallel to the palm and the right side of the palm so that the width of the card is clipped by the length of the thumb. While this palm is easily seen from certain angles, it can allow a much more natural appearance for the magician's hand. This palming technique is easily adaptable for a jumbo coin, usually 3inches in diameter. The Tenkai palm has many applications in card magic such as effects like the snap change and the benzais cop.

Additionally, the Tenkai allows much more freedom in the way of palming and revealing.