Contact

Email

Email: cyis1000@gmail.com

There is no contact form. Write from your own email app and include the address of the page you are writing about.

What to contact us about

• Problems with a tool. Something that does not work or display properly; mention the page, your browser and your device.
• Corrections. A formula, size or chart value that looks wrong.
• Suggestions. A calculator or chart you would like added.
• Privacy questions. Anything about the privacy policy.

We cannot help with a specific pattern or with orders from a shop or brand. We do not sell products.

Before you write

Please do not send passwords, payment details or other sensitive personal information.