The cross-guard lightsaber has predated Kylo Ren and is thought to have originated from planet Malachor. The two vents just below the primary blade are called quillons. 

The Ren lightsaber features three long emitters making the saber durable, stable, and great for heavy combat. The hilt precisely crafted hilt creates a solid feeling in the wielder's hands. Made with the highest quality T6 Aircraft Aluminum hilt and a polycarbonate blade create the ultimate combination providing durability and efficiency.