Mattress felt Color: any color Weight: 300gsm - 1000gsm Width: 20 inches - 90 inches Thickness :1MM - 10MM. Mattress feltColor: any colorWeight: 300gsm - 1000gsmWidth: 20 inches - 90 inchesThickness :1MM - 10MM. Character: Mattress felt .After 200 degree about high temperature sterilization processing, degree of hardness is good, pulling force, the preserve time long time will not have the flavor ...