ABOUT THE EDGING: 3.5" above ground; 6 Pack of 40" each, 20Ft total installed; 7 pieces 8'' Clamps for extra stability; Corten steel is a kind of weathering steel and develop rust patina over time; This rust acts as a protective coating and eliminates the need for paint; CorTen steel material allows the edgings to last for 100 plus years; Clamps and gloves included PRE-RUSTED: The corten steel edging has been pre-rusted; No need to wait, get a beautiful rusted patina right away. Also, you can lock in the color with a coat of polyurethane paint after the patina is completely formed WIDELY USED: These corten steel edgings can add charm and character to your garden landscaping; They create clean lines and offer natural, rustic finish; They keep grass from spreading into your garden beds or soil and mulch in the garden from spilling onto the lawn; Quality Cor-Ten steel landscape edging widely used in outdoor gardens, courtyards and forestry, etc; Used in both commercial and residential settings NO DIG AND EASY TO MAINTAIN: With sharp saw teeth, this bendable hammer-in steel edging is easy to bend and install, (Note:Please wear gloves for installation); It can also be easily hammered back down; You can easily pull the edging up and reshape it to match a new bed shape Email anytime for support. Our team is here to help! 6 Pack 6" Height Pre-Rusted Cor-Ten Steel Landscape Edging - 40" L x 6" H Each (20ft Total) - No-Dig Hammer-in Heavy Duty 14-Gauge Metal Edging Border w/ 7 Clips & Gloves - Edge for Lawn Yard