ITEM NAME:1 Pair MTB Road Bike Aluminum Alloy Tubeless Presta Valve Stems (Black) Product Description Description: 1 Pair MTB Mountain Road Bike Bicycle Aluminum Alloy Tubeless Presta Valve Stems Features: 1. Anodized aluminum alloy Presta valve (French valve), ultra light weight, anti-rust. 2. Round valve end, wrapped with rubber, suitable with most tubeless ready rim or UST rim on the market. 3. Delivered with lock nut to secure the valve on the rim and ensure optimum seal between rim and valve. 4. Rubber O-ring is also delivered with the lock nut. 5. Place the O-ring under the lock nut. Protect your tubeless rim from scratches while tightening the lock nut. Specifications: Material: aluminum alloy Color: black Product size: 50*10mm/1.97*0.39" Gross weight: 10g Quantity: a pair Notes: 1. There may be slight size deviations due to manual measurement, different measuring methods and tools. 2. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor. Included: 1 x Pair of Tubeless Valve Stems.Round valve end, wrapped with rubber, suitable with most tubeless ready rim or UST rim on the market. Place the O-ring under the lock nut. Protect your tubeless rim from scratches while tightening the lock nut.