33cm x 30m This is a set of 17 rolls. It's a bargain, so how about it for those who use it for work? ^ ^ ● Double-sided silicone processing allows use on either side. ● Food doesn't stick to the sheet, so dishes won't fall apart. ● It doesn't let oil through, making it easy to clean cooking utensils. ● It allows steam to pass through moderately, and can also be used for steaming. ● Heat resistant (250°C for 20 minutes), suitable for use in ovens and microwave ovens. Thank you.