This is Ellen from www.inflatable-zone.com.
We just found that your website style were attractive that it is quite good and fit to introduce my company's products. We are looking forward to establishing a cooperative business partnership with you on the basis of equality, mutual benefit.
We would like to put the banner(sidebar) on your website. And there is not any specific size requirements, but it could be seen anywhere when the reader visit your website.
If you are interested with the idea, you are welcomed to contact us and give us your quote.
Have a magical day!