| Blue opaque interior |
| C4 size (324x229mm) |
| Made from mediumweight 100gsm paper |
| Pack of 250 envelopes |
| Peel and seal closure - peel away the release tape from the flap to reveal a strip of gum and press down to form an instant bond |
| Pocket envelope type, therefore the flap is on the short edge of the envelope |
| Window position 25mm in from left-hand side, 213mm up |
| Window size of 40x100mm |