Abstract: An adjustable hair clipper including an interconnected body and head mounted about a common pivot for rotational movement between the body and the head, the body including a motor with an associated drive shaft, a reciprocating cutter in the head, an operating shaft for actuating the reciprocating means, gears in the body interconnecting the drive shaft and the operating shaft, the gears being pivotable about the common pivot thereby permitting the drive shaft and the operating shaft to rotate relative to one another as the head and the body are rotated relative to one another.

Abstract: Various devices are provided for use by a cosmetologist when giving permanent wave treatments, or the like, to customers, and a method of efficiently practicing cosmetology. End-wrap papers are stacked in a self-feeding manner in a dispenser container, and the container is inserted into a holder mounted on a wristband on the cosmetologist's wrist. A supporting structure having a plurality of trays containing hair rollers therein, and supporting a plurality of dispensers for hair-styling rods, is placed adjacent the customer. The end-wrap papers may be removed one-at-a-time from the wrist holder, and the rods and hair rollers may be removed one at a time from the dispensers associated with the supporting structure, without customer assistance, and in an efficient manner.