1. a small hole made by a sharp object. 2. (Automotive Engineering) a perforation and loss of pressure in a pneumatic tyre, made by sharp stones, glass, etc. 3. the act of puncturing or perforating. 4. (Automotive Engineering) the act of puncturing or perforating.
The size of the bag depends on the size of the machine you have. If you have a small machine, you get a smaller bag. My machine is a 'medium' sized one, and my bag lasts approximately 6 months or so. Bags are not cheap, but they are part of the great filtration on this machine, so I suck it up (pardon the pun).
1 Prices for the Birkin bag depend on type of skin, the color, and hardware fixtures. 2  Sizes range from 25-, 30-, 35-, to 40-centimeters, with travelling bags of 50- and 55-centimeters. 3  It also comes in a variety of colors such as black, brown, golden tan, navy blue, olive green, orange, pink, powder blue, red, and white.