Steel Synthesis.Product Appearance,Unique Design,Fine Workmanship,Easy to Use,Safe,Durable,Reliable,Flexible and Easy to Operate.This Product is Fixed on the Parking Space,Protect Control of the Parking Spaces to Prevent Other Vehicles Occupied Specifications: Product Name:O-Shaped Parking Lock Color:Yellow Size:46 * 56 * 32Cm Material:Steel Weight:4.5Kg Finish:Outdoor Paint Ing Features: Compact Compact Bottom Area by a Larger Force over a Large Area and Can Be Rolling Support a Bottom Arc Angle and the Stop Arm is Designed to Arc Angle,Uniform Force Distribution,Prevent the Tire from Being Impact of Multi-Layer Anti-Coating Process,Solid Materials,Rust-Proof,Waterproof,Anti- Package Includes: 1 Parking Lock 3 * Expansion Screws Key 3 * 2 * Reflective Stickers Tip: Manual Measurement,the Measurement Error of 1-2 Cm,Please Understand Due to the Different Angles,Product Image May Be a Slight Color Difference,the Product Should Be Based on the Actual Product. Only the Product Itself,Does Not Contain Any Other Product.