I like to use these to supliment my thinner lightweight stakes in areas of very hard or loose ground. I find them pretty durable and have stood up to a lot of wear and bashing with rocks with minimal damage, they are also pretty lightweight, more so than others of a similar design, they grip well and pack together neatly. I have used my own cord to thread through the holes.
Its light. Its blue. Its a tent stake. The picture is accurate but i don't think the description is (i don't see any j shape in this peg). Its V shaped and there is a hole in each one for a string so they are easy to pull out of the ground.