CE,FDA,ISO

1. "◆" means it's non-stock products, may need to customize. 

2. The letters after model numbers mean of:

"A", means improved;

"B" means improved;

"C", means improved;

"D" means special materials;

"T" means titanium alloy;

"Z" means black diamond gem cutter;

"S" means polymer handle and gem cutter;

"M" means plated diamond-like carbon films,

" X" means that the head can be rotated and removal.

56191A:USD4.94/PC,56199A:USD2.68/PC.They only can be sold together.