BEST WAY produces both Car Universal Fit Seat Covers and Car Custom Fit Seat Covers. Car Universal Fit Seat Covers can fit for most cars. And they are made of different kinds of materials. We have car polyster seat covers,car PVC seat covers,car PU seat covers,suede car seat covers,etc. Normally,we have 2pcs/set,6pcs/set,8pcs/set,9pcs/set,11pcs/set,16pcs/set,17pcs/set. But the 6pcs/set low back car front seat covers sells best. How to choice the material of car seat covers? Actually, car polyster seat covers & car PVC seat covers are most popular materials. You can wash the car polyster seat covers by machine or by hand.