Thai Toksen Massage is on the first floor of Omni Tower Sukhumvit Nana in Khlong Toei, Bangkok. Its signature service is tok sen massage, in which a hammer taps muscles and pressure points. A one-hour course is available, and bookings can be made through WhatsApp. The facility is simple and clean, and it sits at the back inside Omni Tower, which makes it hard to find at first and dimly lit.