... Internal Dia : 12,13,14,16,18,20,24,28mm Color : as per yr requirement Aluminum screw sprayerScrew MicrosprayMaterial : plastic-aluSize : 12 ... /410,13/410,14/410,16/410,18/410,18/415,20/410 ... hesitate to tell us . Thanks and have a nice day ! 18-20mm aluminum screw mist sprayer