FITS ALL ADULT MOUNTAIN BIKES - The rubber grip pads attached to the end of the double clamp extenders offer a great new use for kids to use them as handlebars for their child seat on the bike. They come with inserts that are suitable for handlebar diameters of 15 mm - 40 mm. EASY INSTALLATION AND DISASSEMBLY: This product comes with complete installation tools and detailed installation instructions, and the installation steps are very simple. You only need to find a suitable installation position for the front of the handlebar of the children's bicycle, and then tighten the screws to use HIGH TENSILE MATERIAL: The handlebar attachment is lightweight and durable because it is made of CNC aluminum alloy. It deepens the texture, increases the friction surface, is easy to control, easy to clean, wear-resistant, tear-resistant, durable, and the solid alloy tube frame provides high stability and high safety SUITABLE FOR OUTDOOR CYCLING: This is a bicycle seat suitable for parent-child outdoor sports, it keeps your child safe and comfortable during the ride. The child cycling seat designed and made to premium quality standards for safety and comfort. HIGH QUALITY SERVICE: If you have problems after receiving the goods or using the goods, we will always offer reasonable solutions. We hope you can give valuable advice. We will continue to improve and improve our products and offer our customers better products