At less than 6 grams per stake, this full-strength tent stake from MSR is the lightest on the market. 

• Carbon fiber core for strength and rigidity; 7000-series aluminum covering for durability
• Length: 6 in. (15 cm)
• Weight: less than 6 g per stake (5.5 g; 0.19 oz.)
• Sold as a kit of 4 stakes
• Weight: 5.5 g (0.19 oz.) per stake