Dear Sir,For your kind information our products range for polyester casting tapes is as follows:1- NEWTECH CAST 2� * 4 Y2- NEWTECH CAST 3� * 4 Y3- NEWTECH CAST 4� * 4 Y4- NEWTECH CAST 5� * 4 YPacking:1 inbox contains 10 rolls � 1 outbox contains 10 inboxesStandard: ISO KSA 9001 KQC 1588, ASTM F 1536-95CE registered certificate no. 0243371-01EN 1441:1997Looking forward to hearing from you soon.Best regards,Kh. MoosaCommercial Manager