From the manufacturer's official website:

The wide pivot link design boosts strength and rigidity. Flex is suppressed, creating sharp, precise shifts that are faster and smoother, even from low to high gears off of the saddle.

Features:

• Wide link design:20% increased rigidity.
• Pivot locations for less cage deflection:Pivot location at cage was moved to point of maximum force to reduce cage deflection.
• Narrower chain cage:Narrower chain cage to accommodate 10-speed chain.
• SG-X chainrings compatibility
• Light action spring
• DUAL SIS front index shifting
• Weight: 103g

Specifications:

• Rear speeds 10-speed
• DUAL SIS Yes
• Top Gear Teeth 50-56T
• Capacity 15T
• Link Bushing lower/A-pin
• O-ring Seals No.
• Spring Cover Yes
• Chain Stay Angle 61-66 deg.
• Mounting brazed-on, band
• Applicable Chainline 43.5mm
• Band Diameter 28.6***/ 31.8/34.9mm
  *** W/multi clamp band
• Band/Brazed-on Clamp aluminum/ clear coated
• Outer Link aluminum/ clear coated
• Inner Link aluminum/ clear coated
• Chain Guide steel/ pearl bright finish
• Average Weight 103g (brazed-on)

For more information, please visit this product's webpage.