DIRECTLY from Predator's website:

Predator REVO® 12.4 Ultra Low Deflection Shaft

REVO® carbon fiber shafts are the best in billiards technology and performance. Not only the most accurate shaft ever made, REVO® provides effortless action and power with more consistency than wood shafts. Comprised of aero-space grade carbon fiber composite, REVO® shafts stay straight and are significantly more durable than traditional wood shafts.

THE MOST POWERFUL REVO®

 ► PIN-POINT ACCURACY: No need to think about where you aim. That means faster progress and less mistakes under pressure.
 ► MORE POWER WITH LESS EFFORT: You don't have to overhit the ball. You can stroke softly and still get reaction, power and spin.
 ► FIRM HIT: REVO 12.9 is our stiffest feeling carbon fiber shaft.
 ► OPTIMAL COMFORT: 12.9's Low-Rise Pro Taper is the closest to our 314 shaft's Pro Taper (almost identical from 4 to 14 inches from the tip end).
 ► REVO® 12.9 MM is for players of all levels who choose Power over control or spin.

Tip : 12.4 mm 8 layered Predator soft Victory tip
Ferrule : Ferule-less Construction with White vault Plate
Shaft : 30" carbon fiber composite
Pin : Multiple 
Collar : Thin black P3 

Additional Information

• This shaft comes with a case
• Comes with Revo cleaning wipes
• Warranty : Lifetime against warpage 
  
  
  3/8 x 10 - McDermott, 5280, Elite and OB Cues
  5/16 x 14 - Schon and Joss Cues
  3/8 x 14 - Scorpion and CueTec cues
  5/16 x 18 - Action, Eight Ball Mafia, Players, Griffin, Outlaw, Voodoo, and Meucci