Transparent strip off crowns- posterior type F 60 pcs - ADULT Contains: 5 each upper right first premolar (#141 & #142), 5 each lower right first premolar (#441 & #442), 5 each upper left first premolar (#241 & #242) 5 each lower left first premolar (#341 & #342) 3 each upper right first molar (#161 & #162), 2 each lower right first molar (#461 & #462) 3 each upper left first molar (#261 & #262) & 2 each lower left first molar (#361 & #362)