Description This bump expansion bolt is made of iron, which has strong compressive ability, easy to install on speed bumps, warning posts, and drywall. This bump bolt is specially designed to fixing bump, suitable for various road environments such as parking lots, residential areas, and construction sites.-anchor bolts for concrete Features -Color:Silver -Material:Iron -Size:10.00X1.20X1.20cm/3.93X0.47X0.47in -Strong material: The iron expansion bolt is designed for durability and strong compressive ability.-concrete anchors -Easy installation: The expansion bolts for quick and convenient installation on various road elements.-concrete anchor -Widely used: Speeds bumps bolts can be used in warning posts, speeds bumps, parking blocks, and so on.-anchor bolts -Versatile application: Suitable for parking lots, garage, construction sites, residential areas, and more.-stainless expansion bolts -The expansion bolt is made of iron, thick and serviceable, moderate hardness, can serve for a long time.-bolts Easy installation: The expansion bolts for quick and convenient installation on various road elements.-expension boltsSpeeds bumps expansion bolt is very practical and sturdy, giving you a good using experience.-expansion screw boltVersatile application: Suitable for parking lots, garage, construction sites, residential areas, and more.-expansion boltVersatile usage: Suitable for many environments such as parking lots, driveways, concrete roads, etc.-expansion concrete wall anchorsQuick installation: Expansion anchors allow for effortless attachment to speed bumps.-expension bolt8 x Ramps Bolts-expansion bolts