These Crystals are the Highest Quality DMC Rhinestone, Premium Glass Crystals which are a great lower-price alternative to Swarovski with an amazing shine.  They need glue to use, they are not hotfix. This is equivalent to the Ized Collection.....

                                             
ss6 (2.0mm)

ss10 (2.7-2.9mm)

ss12 (3.0-3.2mm)

ss16(3.8-4.0mm)

ss20(4.6-4.8mm)

 

10 Gross (1,440 stones)

25 Gross (3,600 stones)