A curved tempered glass screen protector for the Samsung Galaxy S7 Edge typically features a 0.26mm to 0.3mm thickness, 9H hardness for scratch resistance, and a 2.5D or 3D curved design to cover the entire screen. These protectors often include features like high light transmittance, oleophobic coating for fingerprint resistance, and an anti-shatter film for safety. 
Here's a more detailed breakdown:
Key Specs:
Thickness: Usually around 0.26mm to 0.3mm.
Hardness: 9H hardness, providing excellent scratch resistance, comparable to diamond's 10H, according to www.pro-mobile.ca.
Design: Typically 2.5D or 3D curved to match the phone's screen shape and provide full coverage.
Material: Made of tempered glass for durability.
Clarity: High light transmittance (often around 98%) for clear screen visibility.
Coating: Oleophobic coating to resist fingerprints and smudges.
Anti-shatter Film: In case of breakage, the film helps to keep the shattered pieces together, minimizing injury risk.
Adhesion: Often features a silicone adhesive layer for bubble-free installation, says www.pro-mobile.ca.
Touch Sensitivity: Designed to maintain high touch sensitivity and responsiveness.