Blake Creative Shine C7 162 x 229 mm 130 GSM Peel & Seal Wallet Metallic Gold Envelopes - Box of 250

GSM stands for 'Grams per Square Meter'. 130 GSM indicates the weight and thickness of the paper. A higher GSM generally means a heavier, more substantial paper, which contributes to a premium feel and durability.

Simply peel off the protective strip that covers the adhesive. Then, fold the flap over and press down firmly along the entire length of the seal for several seconds. Ensure the surface is clean for optimal adhesion.

The envelopes are manufactured from environmentally friendly paper sourced from sustainable forest management practices.

The metallic finish may present challenges for some printers. It's recommended to test with a small batch on your specific printer model to ensure compatibility and quality results before printing a large quantity.

A C7 envelope measures 162 x 229 mm. It's ideal for A4 paper folded once, or for smaller inserts and cards that do not exceed these dimensions.

As they are made from paper, they are generally recyclable. However, it's always best to check local recycling guidelines, as adhesive strips or window materials can sometimes affect recyclability.

Ensure the sealing surface is clean, dry, and free from dust or debris. Press firmly along the entire length of the seal for at least 10-15 seconds to ensure a secure bond. Check that the protective strip was fully removed.

While the 130 GSM paper offers good durability, it's essential to use appropriate protective measures during mailing, such as using a rigid mailer or ensuring the envelope is not overstuffed. The C7 size is generally robust when not overfilled.

This can sometimes occur due to storage conditions. Ensure envelopes are stored away from humidity and direct light. Minor variations can be inherent in metallic finishes.