I got the New Pig Grippy Mats today. 10 in a box, around $35 so they're not what you could call cheap.
Advertised as 16x24, actual measurement on my batch was 15-3/4 x 24 +/- 1/8th. Most were nice and square, one was trimmed a little cockeyed, but overall, I'm very happy with the quality.
The 15-3/4 was perfect for the drawers in my Husky box, width on mine is 23-1/8, so I had to trim one strip off each one.
The adhesive on the back is very effective, but it's also reusable. If you don't quite get it flat or lined up right, you can peel it up and reposition it without affecting the quality of the adhesive.
Initially, I'm pleased and think it was money well spent. We shall see how well it resists sliding and bunching.