Name: Hex, Rockcentric (trade name), Hexcentric (trade name)
Who carries them: Leader
Use: Hexes are great for jamming in large cracks (eep!) either as protection en route or probably more often as an anchor point for a belay. They're versatile, relatively easy to place and make a cool noise when they hit each other... There are different makes of hexes which are all slightly different shapes and sit in cracks differently so make sure you know which ones you're using.