Scotch tape is an adhesive product widely used in offices, households, industries, etc. It is available in a variety of sizes and specifications to suit different usage needs. Here are some common scotch tape sizes:

1. Width: The width of scotch tape is usually between a few millimeters and tens of millimeters. Common widths include: 12mm, 18mm, 24mm, 36mm, 48mm, etc.

2. Length: The length of transparent tape can be customized according to specific needs, but the common length is generally about 10 meters to 100 meters.

3. Thickness: The thickness of scotch tape is usually in "mic" (micrometer), and the common thickness range is 30mic to 50mic.