Kenobi's lightsaber features a minimalist, skeletal design with a chromium hilt and emitter and a series of black composite metal ridges along the grip.
More information about the weapon available on the Wookieepedia article.
OBI-WAN KENOBI'S LIGHTSABER[1][]
Bastion of Safety: Kenobi's lightsaber draws the eye of every combatant on the field if ignited. Once per encounter before igniting, the wielder may make a Hard difficulty Leadership or Negotiation check as an incidental to draw fire. If successful, until the wielder's next turn, whenever an enemy character in the current encounter makes a ranged combat check that could target the wielder, they must target the wielder. The GM may spend two threat results or a despair result to exclude an enemy from this effect.
DISARMING NATURE[]
[...] Whenever Kenobi makes a successful combat check with his lightsaber that results in a Critical Injury and the Critical Injury result is over 75, he may treat the result as if it were 105.
- ↑ Gadgets and Gear: The Essential Collection of Weapons and Equipment (Page 51)