Saliva pad 1 )waterproof ,soft,light, 2) easy to wash ,can be washes at 95 temperture for 150 times 3) no harm to body Saliva pad1 )uplayer ; polyester printed fabric2 )bottom pvc3 ) soft ,comfortable, different colors4 )waterproof ,soft,light,5 ) easy to wash ,can be washes at 95 temperture for 150 times6) no harm to body