I bought 100 of these for 6$us,and am really impressed with how they perform.Use it in my baili 131,and get bbs shave in 2 passes,no irritation,and can get 4,5 shaves easily.Would recome d these ones to anyone,am buying another pack,tried them with merkur 33c but its mild razor,baili is more agressive and with these performs like a champ.