Real, Medical Grade Titanium Clutch Back/Mega Back Pack3 Pairs of Titanium Backs.034 Standard/Same as Styles Used for In-Studio Piercing. Friction Clutch Backback picturedHole Size .034  for the Standard Back 5mm  or .032 Mini Titanium 4mmPush/Pull Open Fricton Cluth BackingNo Discount Applies to thess Items.Please Specify: Standard In-Studio Medical Grade Titanium Style 0.34 or .032 Mini