Colorful Polka Dot Envelopes - Colors: Red, Green, Blue, Yellow - Design: Polka Dots - Size: Approximately 11.5 x 8.5 cm Thank you for viewing. These are envelopes made from origami. Set of 16, 4 of each of the 4 colors. ⚠️ The fourth photo is a reference photo. It is not the product. Reference: A standard memo pad [10.5 x 15 cm] folded in half fits perfectly.