Pack of 5 2/Fold/3 panel Cards Circle Aperture and White EnvelopesCard size: 104 x 152 (6 x 4) Circle Diameter = 80mmCards are made from good quality stiff card. The envelopes are good quality gummed diamond flap, and are all approximately 5mm wider and taller then the cards. Use for embroidery work, art work photographs etc.