1) They are supplied with a VOID/OPEN tape & strong adhesive which make it tamper-evident. It is immposible to open these once they are sealed, and any attempt to open/re-close them will be clearly visible. 2) The envelopes are very strong. We are specially providing an additional security seal on both sides of envelopes . This ensures that there is absolutely no possibility of a loss/Tamper of Exam Papers/Material/Documents/Coupons in transit. Conventional Paper laminated envelopes undergo a manual pasting process which may not be so foolproof. Full processing of our envelopes is by machines where there is no chance of human error. We are also providing Temper evident gumming on the flap wherein the flap would tear on any attempt made for opening the envelope. 3) We can also print Unique reference number along with barcode on the envelope which can be used to maintain a log or can be used for cross referencing. The reference number will be in ascending order wherein each envelope will have an unique number. This code number will be impossible to duplicate. This code can be printed in either Barcode format or numbering format as printed on samples.

1) They are supplied with a VOID/OPEN tape & strong adhesive which make it tamper-evident. It is immposible to open these once they are sealed, and any attempt to open/re-close them will be clearly visible. 2) The envelopes are very strong. We are specially providing an additional security seal on both sides of envelopes . This ensures that there is absolutely no possibility of a loss/Tamper of Exam Papers/Material/Documents/Coupons in transit. Conventional Paper laminated envelopes undergo a manual pasting process which may not be so foolproof. Full processing of our envelopes is by machines where there is no chance of human error. We are also providing Temper evident gumming on the flap wherein the flap would tear on any attempt made for opening the envelope. 3) We can also print Unique reference number along with barcode on the envelope which can be used to maintain a log or can be used for cross referencing. The reference number will be in ascending order wherein each envelope will have an unique number. This code number will be impossible to duplicate. This code can be printed in either Barcode format or numbering format as printed on samples.