Voron 2.4 Series Rail Kits custom to order! These high quality rails are GCr15 Carbon Steel (NOT STAINLESS!) MGN9 and MGN12 rail sets per the standard BOM. If you're interested in alternatives or odd sizes (MGN12 Z-axis mods, C-carriages, cut to mm length, etc) please reach out and we'll get you set up.***Stainless rail option coming soon!***These kit ship FREE via USPS Priority with delivery to the continental US in 2-4 business days and orders received before 3PM EST typically ship same day!