... 1.material: SBR, NBR, EPDM, PU, FKM etc.2.color: black and red3.size: two inch and three inch(any sizes ... the industry Materials: SBR, NBR, EPDM, PU, FKM etcColors:Red, black etc.Size:two inch and three inch(any sizes and ... you for taking time to visit our products, pls feel free to contact us for more information.