It is said to be a specter which scratches with a long arm and fingers the itchy spots just like the backscratcher does, but it also is said that, if one is not careful, one may be painfully hurt.
孫の手同様に長い腕と指で痒いところを掻く妖怪とされるが、油断すると爪で手痛い傷を負わされるともいう。