This disposable ST2 razor has become my go-to for head-shaving. It's very similar to the Trac in that it has a non-pivoting head with two blades. But while the Trac with Personna Twin blades has some difficulty going through about 4 days worth of hair growth on my head, the ST2 mows right through. And in an era of giant razor heads, the slim head of the ST2 is a pleasant change. There's also little push down tab on the head to clean the gunk out from between the blades. And each is less than 50 cents. Nice!