Feature: High strength Lightweight design High-strength aluminum alloy, lightweight design, fine workmanship Multiple styles and sizes show personality Double track 300MM height molding Precision cutting, high pressure resistance, anti-twisting, tough and firm Frosted frosted, strong texture Specification: Product name: Mountain bike seatpost Product material: Aluminum alloy Product color: Black Product style: Double track Product application: Suitable for bow-shaped For seat cushions Product features: High-strength aluminum alloy material Lightweight design Product size: 24.01*31.3*300MM 24.01*30.4*300MM24.01*30.8*300MM 24.03*28.6*300MM24.03*25.4*300MM 24.03*27.2*300MM Package Content： 1*Mountain bike seatpost Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Compatibility - Bicycle Mountain Bike For Seat Tube Aluminum Alloy 25.4/27.2mm/28.6/31.6 Good Performance Materials - These bike accessories are made of premium material, ensuring their durability and long-lasting performance. Optimal Performance - These accessories offer versatility and adaptability to different cycling needs and provide optimal performance and reliable functionality enhance the riding experience and ensure safety. Easy Installation - These accessories can be easily installed on your bike to get your bike running again. After-sale Serive - We provide high quality products, if there is any problem with our product, please contact us.