Feather Token - Whip "A token that forms into a huge leather whip and wields itself against any opponent desired just like a dancing weapon. The weapon has a +10 base attack bonus, does 1d6+1 points of nonlethal damage, has a +1 enhancement bonus on attack and damage rolls, and a makes a free grapple attack (with a +15 bonus on its combat maneuver checks) if it hits. The whip lasts no longer than 1 hour"
So what does it (Combat) Stat block look like? Specifically AC Hit Points (Hardness/DR), Attacks, Reach, CMB & CMD.
A Large whip?:
While looking into this looked at the Balor Demon - to me it looks like it is wielding a Medium Sized Scorpion Whip, given the reach with the whip (& The Whip Mastery offsetting the -2 Penalty for wrong sized) which is simpler than the Whip Mastery giving Leathal damage to the whip & the whip counting as a light weapon.
Hardness 2, HP 5/inch of thickness so probably just 5, reach would be 30'.
Attack Melee +10 CMB +15, CMD 25