I received 40 Mach turbo blades in 4 packs from Actual Discount Wholesale Company ( pmarkham1@aol.com ). These razor blades were so bad I had to use 8 blades to shave 5 times. the blades kept breaking at the hinge point and becoming floppy and unusable.The seller pmarkham refused to accept a return or issue a refund because they said I had the blades 30 days and  said sorry. I did not use the blades when they arrived  because I had a few remaining real turbo blades  to finish with. Beware of this seller and the product they are selling.As a courtesy  I left favorable feedback when the blades arrived and now I regret that, all $ 43.90 worth. If it looks to good to be true....beware