A high-quality, lightweight front carrier block featuring a unique hand-pull retractable design for easy one-handed bag mounting and removal on Brompton bikes. Crafted from durable CNC-cut and anodized aluminum alloy, this hollow-design carrier block reduces overall weight while ensuring smooth cycling and easy bag attachment. Designed specifically for Brompton bicycles, this front carrier block offers a perfect fit with standard mounting holes and a convenient pull-release mechanism for quick bag access. The innovative hand-pull retractable mechanism allows for effortless bag mounting with just a gentle finger pull, combining convenience with a sleek, hollow aluminum alloy build. Optimize your Brompton with this durable front bag mount. Its lightweight hollow structure, precise dimensions, and user-friendly retractable design enhance  functionality  Item Name: Front Carrier Block Material: undefined Features: Hand-pull Retractable Design, Hollow Design, Widely Used Size Details: 5.3cm x 6.6cm x 7cm/2.09" x 2.6" x 2.76" (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 Front Carrier Block 1 x Wrench 4 x Mounting Screws