1. Material: Made from quality aluminum alloy, this Brompton front carrier block features a lightweight design with fine craftsmanship and sleek lines, offering corrosion resistance and wear durability for longlasting performance. 2. Versatile Mounting Design: Equipped with 3hole (12.85 mm spacing) and 2hole (25.7 mm spacing) mounting options, this adapter provides flexible installation for Brompton bikes, ensuring a secure attachment to your frame. 3. Easy Installation: Simply attach it to your bike frame using the included mounting screws and wrenches—no modification, cutting, or drilling required, making the setup process quick and hassle for riders of all experience levels. 4. Stylish Upgrade: Available in four attractive colors (blue, red, gold, and silver), this front carrier block adapter adds a touch of fashion to your bike, giving it a cooler and more distinctive look.