109720607 is a 13 mm U-Ring ratchet wrench made of chrome vanadium steel.
It is a combination of a block wrench and a twelve-sided ring ratchet wrench.
The locking function is adjustable for right or left pulling and the twelve-sided ring head is bent at a 15 degree angle.
Both ends have the same key width and it is matte chrome plated for increased durability.