This is not for the Ender 3 Pro! This is the original Ender 3 (we call it the Non Pro).
The little brother to the Extender 400, this version sports a medium sized build plate of 12 inch by 12 inch (approximately 300 by 300mm). When you want just a little more room on the build platform but don't have space for the Extender 400.
Note: This model includes the same, but smaller, parts as the Extender 400. If you need a print surface, we suggest adding the 12 by 12 mirror product to your order so we can ship it in the same carton.
Installation Guides
https://enderextender.com/pages/installation-guides
Note:
The aluminum plate that comes with this kit is not warrantied to be flat. You will require either a glass build surface or a bltouch; both are actually strongly recommended.
(Picture shows printer; printer is not included. This is for a DIY kit which includes frame parts, build plate and screws/nuts/washers to assemble onto your existing printer)
THIS KIT DOES NOT INCLUDE A BUILD SURFACE SUCH AS GLASS, PEI, OR STICKER SHEET