From Industry Nine:

Industry Nine’s A-Series mountain bike stems are crafted from domestically-sourced 7075 aluminum billet into a svelte design achieving a nexus of form and function. 

Taking name and shape from the A-axis in our five-axis machining centers, the A35 and A318 are destined for your favorite all-mountain rides. The A35 and A318 utilize either a 35mm or 31.8mm handlebar clamp diameter providing 180 degrees of contact on the stem body for twist-free security that will play nice with both alloy and carbon bars. Stainless steel hardware ensures everything stays in place and looks great, regardless of mud-blasting washes or rainforest climates.

Every A-Series stem is machined, anodized and assembled entirely in I9's Asheville, NC facility and available in a variety of lengths geared for modern trail bike geometry.