For a few seconds, that string of characters was the only bridge between a fading video and a permanent audio file on Leo's hard drive. The converter worked through the steps: The link was validated.
Leo was a history student who spent his nights scouring the deep corners of the internet for rare oral histories. He finally found what he was looking for: a 1974 interview with a forgotten architect, buried in a grainy YouTube video with only twelve views.
Knowing the video could be deleted at any moment, Leo turned to his favorite tool, Ytmp3. He copied the URL and pasted it into the conversion box. As the servers began to "read the link, extract the audio, and process it into an MP3," the system assigned a unique, temporary string to his request to track the conversion: .
For a few seconds, that string of characters was the only bridge between a fading video and a permanent audio file on Leo's hard drive. The converter worked through the steps: The link was validated.
Leo was a history student who spent his nights scouring the deep corners of the internet for rare oral histories. He finally found what he was looking for: a 1974 interview with a forgotten architect, buried in a grainy YouTube video with only twelve views.
Knowing the video could be deleted at any moment, Leo turned to his favorite tool, Ytmp3. He copied the URL and pasted it into the conversion box. As the servers began to "read the link, extract the audio, and process it into an MP3," the system assigned a unique, temporary string to his request to track the conversion: .
*Discount applied on the current website price at the time of order. Offer only valid for new customer first contacts order over $10. Maximum discount of $100. Cannot be combined with any other offers. Promotions are subject to change without notice. We reserve the right to cancel orders that are in breach of the terms and conditions of this offer.


| Lens Width | Bridge Width | Temple Length | |
|---|---|---|---|
| XS | < 42 mm | < 16 mm | <=128 mm |
| S | 42 mm - 48 mm | 16 mm - 17 mm | 128 mm - 134 mm |
| M | 49 mm - 52 mm | 18 mm - 19 mm | 135 mm - 141 mm |
| L | >52 mm | >19 mm | >= 141 mm |
Buying eyewear should leave you happy and good-looking. Use our sizing tool to find frames that best fit your unique facial measurements.
Grab a regular card with a magnetic stripe on the back. Student IDs, credit cards and gift cards work well to start our online PD tool.
You may have received our paper PD measurement tool in your recent online order. In order to use this tool, place the ruler on your eyes so that the "0" lines up at the centre in between your eyes. Add up the two numbers, to get your PD. See example below:
Click on this link to download and print your own PD measurement tool.
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