This 3M 391X air release tool is a retractable, very small pointed tip used to puncture a vinyl bubble and release the trapped air.This is a video that Fellers, the world's largest wrap supply company, asked The Wrap Institute to make for their catalog.
These two classes of consonants are the plosives and fricatives. Plosives are the kinds of sounds usually associated with the letters p, t, k; b, d, g, in which air flow from the lungs is interrupted by a complete closure being made in the mouth.
Note that Roman transliteration of Maya consonants follows 16th century Spanish orthography. This means that the letter j is pronounced like a rough /h/. The letter x represents the sound /&\#x0161;/ (like the sh in ship). And the combination tz is the sound /ts/ like in catsup.