With features such as corrosion resistance, rust resistance, wear resistance and high hardness, this product can withstand harsh environments and be used compatible a long time. The exquisite workmanship, sturdy construction and superior durability of this product make it a perfect replacement compatible your old original parts. It is made of high-quality rubber and stainless steel material. The length of the package bag is 10.8 cm, the width is 6.7 cm, the height is 2.6 cm. It is suitable compatible mounting on bicycles, bicycles, motorcycles, strollers, mountain bikes, off-road bikes, hiking bikes, road bikes, golf carts, electric scooters, ATVs, etc. Item Name: Bracket Ball Head Material: Rubber, Stainless Steel Features: Rust-proof, High Strength, Wear-resistant Specification: M8, M10 Thread Direction: Orthodontic (Right-hand Thread) Size Details: Package Size: 10.8cm x 6.7cm x 2.6cm/4.25" x 2.64" x 1.02" (Approx.) Ball Diameter: 2.5cm/0.98" (Approx.) Thread Length: 1.1cm/0.43" (Approx.) Pitch Length: 0.125cm/0.05" (Approx.) Bottom Diameter: 0.8cm/0.31" (Approx.) Total Length: 5.2cm/2.05" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Bracket Ball Head