The contact surface combines two elements. The yellow massage discs are the actual pressure points. Each disc has double-pointed needles, so the force is split between two small tips. This is what the product description calls the “Plum Blossom” design: the double-point shape distributes pressure more gently than a single deep point.
The magnetic inserts are separate parts built into the applicator. According to the description, they produce a constant low-level magnetic field that acts alongside the pressure effect. You do not need to switch anything on, aim it or adjust it; the field is simply present while you use the applicator. Some people specifically choose magnetic options for relaxation-oriented massage accessories, while others do not perceive a clear difference. In both cases, the main sensation comes from the mechanical pressure of the discs.
Because the magnets are built in, anyone with a pacemaker or implanted electronic device should ask a qualified specialist before using this applicator. The product is a self-massage accessory for relaxation, not a substitute for professional medical care.