All-round tooth preparation kit - new scenery with light handpiece Motor and light are separate, the motor is not disinfected, extend the lamp life, the lamp will not be bad. Screw-on quick-connect motor, no leakage of air leakage. Standard: two large heads, two standard heads, one 45-degree angle-impeded toothed handpiece  and two fast-connected motors. The use of imported ceramic bearings, six months warranty, motor and lights are guaranteed for one year.