6x6 Black Envelopes – 100gsm – 155 × 155mm

Add a bold, sophisticated finish to your stationery with our 6×6 Black Envelopes. Made from smooth 100gsm paper with a matching black interior, these square envelopes measure 155 × 155 mm and are designed to fit 145 × 145 mm cards, making them a striking choice for invitations, greeting cards, announcements and handmade stationery.

The deep black colour creates a sleek, timeless look that complements modern, minimalist and luxury designs. Finished with a smooth surface and secure gummed diamond flap, these envelopes provide a polished presentation for celebrations, special events, business correspondence and creative stationery projects.

Features

Envelope size: 155 × 155 mm (6×6)
Fits 145 × 145 mm cards
Smooth 100gsm paper
Deep black colour
Matching black interior
Square format
Secure gummed diamond flap
Supplied flat for easy storage

Perfect for

Wedding invitations
Save the Date cards
Birthday invitations
Greeting cards
Thank you cards
145 × 145 mm cards
Handmade stationery
Card making
Business correspondence
Luxury stationery
Celebrations and special occasions

Please note

Colours may vary slightly between screens, monitors, lighting conditions and individual devices.