The price is great value but its a PTFE seal which is required to be fitted dry no lubricant on shaft. This is the total opposite the old style oil seals and a reason why a lot fail because incorrectly fitted. Please see pictures I've posted which are generic but show tool required which come with some seals. I have fitted to shaft without only because its out of car I can inspect right round lip. This is a good product for price they fail if you don't fit correctly or use oil on them.