Specification: Model: Adjustable bicycle parking clip0. Delivery quantity: One piece Color: Black Weight: 0.3 kg (package weight) Product size: Refer to the image Installation steps: Start by placing the bicycle vertically against the wall with the bottom tire on the ground. Mark where the front wheel touches the wall and mark each mounting hole for the clip. Then drill or screw into the wall using the included hardware kit. Once the clip is installed, you can adjust the opening width by simultaneously pressing the two side buttons. Now slide the bicycle tire into the clip until it clicks into place, then push the clip arm back until it firmly grips the wheel. To keep the bike in place, you must keep the bike upright with the rear tire against the wall. You have just completed a safe and secure assembly that will not cause any slippage on your bike. Describes: Adjustable Design: This wall-mounted bike rack has an adjustable width for mountain bikes and road bikes. Space Saving: Unlike other racks Unlike traditional wall-mounted bike racks, this parking ring wall mount is designed for indoor use and can hold the bike vertically against the wall or floor to save space. EASY INSTALLATION: We provide two expansion screws with slots in the installation diagram, so you can securely fix the parking ring in the correct position—very convenient. APPEARANCE: This wall-mounted bike rack is made of high-strength PC plastic, making it sturdy and heavy-duty, stylish and attractive. It's safe and allows you to freely use your creativity, providing free parking anytime, anywhere. WIDELY USED: Bike clips can be used in bedrooms, garages, storage rooms, sheds, etc. It's also ideal for showcasing bike retail stores.