You are purchasing 4 Riso S-4250 compatible master rolls with integrated RFID chips. For use in Risograph EZ220, RZ220, RZ230, RZ310, and RZ370 digital duplicators.

This product has been recently manufactured, this is not old inventory. Our customers have had great results with this compatible brand.

Please feel free to email me any questions about compatibility, etc. We pack the product boxes in another box to protect them during shipping. Thanks for looking at our listing.