Features: Full CNC Machined, Five-axis cutting machine. High strength and smoother surface. Made of premium aluminum alloy material, anti-deformation, anti-rust, sturdy, durable for long-time use. for Ideal for bicycle handlebar diameter 31.8mm. Fine workmanship, hollow design, difficult to break. Smooth surface, will not scratch your bike. Specifications: Product specification: Brand: SWTXO Name: 2021New SWTXO 50mm Stem Color: Black, Red, Blue, Orange, Purple, Rainbow Material: Aluminum Alloy Processing technology: 3D forged Full CNC Machined Angle: 0 degrees Handle diameter: 31.8mm Fork diameter: 1-1 / 8 "28.6mm Length: 35mm Application: XC AM Enduro DH Weight: About 135g 5g Note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Pcs MTB Bike Stem.