Thank you for your interest. If there are any problems with the product, we will take care of it, so please purchase with confidence. Cast iron pegs are characterized by their ability to firmly handle soft ground such as lawns and loose ground, tent sites with lots of stones that other peg materials can't handle, and situations where tents and tarps might fly away in the wind. A length of about 30cm is recommended for cast iron pegs. A length of 30cm is easy to handle and has high safety. It won't come out easily unless it's on a sandy beach. Merits and demerits of choosing cast iron pegs. Merits ・Can be driven into hard ground ・Durable and hard to bend, so it lasts a long time ・Can be used with confidence even in strong winds Demerits ・The price per peg is high ・Heavy, so it's difficult to carry You can use forged pegs only for areas with heavy loads and use the included pegs for the rest. Material: Steel (steel) Length: 30 cm Diameter: 9mm Weight: 160g As a bonus, we will also include a glow-in-the-dark ring for nighttime use. This will prevent you from tripping over the pegs in the dark. *If you have a desired number of pegs, please consult in the comment section. *If there are any problems with the product, we will take care of it, so please purchase with confidence. Type: Tarp/Tent Setup Supplies Type: Pegs Peg Material: Cast Iron Steel Peg Material: Cast Iron Steel