They are Bensen rotors with low hours. Marks on rotors are from light reflection. I checked the balance and they are dead on. Also ran string from corner to corner and string passes perfectly at center of block mount. They are in good condition no cracks or nicks. I installed all new AN bolts,washers and cast nuts. I replaced them one at a time in order not to disturb allignment. There are 2 marks on underside to set pitch. I want $1,300.00 firm. You pick up or pa xtra for shipping.