31/32 Series Prong Set Crystal,stud size 2mm,3mm,4mm,14 colors.
33/34 Series Prong Set Cubic Zirconia,stud size 2mm,3mm,4mm,5mm ,4 colors.
35/36 Series Prong Set princess cut .stud size 3*3mm and 4*4mm, 5 colors.
61/62 series Prong Set 6 claws Cubic Zirconia ,6 colors.
31/33/35/61,Surgical Stainless Steel 316F
32/34/36/62,24K Gold Plate 316F