haowei 4 Pcs Strong Outdoor Safety Camping Tent Fixing Screw Thread Snow Nail Ice Nail Tent Fixing Nail Windproof Heavy Duty High Strength Climbing Hiking AccessoriesProduct Details ?Material:Iron.? ?Size:Width 11.5mm/0.45inch.The nail length is about 12cmm/4.72inch.Nail thickness 9mm/0.35inch.? ?Color:Silver.? ?Package Includes:4 piece Tent Nail..