5005230 Zane Kendo Training is a promotional LEGO Ninjago: Masters of Spinjitzu polybag released in 2018. It contains an exclusive Spinjitzu Training Zane minifigure and his Kendo gear.
LEGO.com description
Prepare for battle with this portable LEGO® NINJAGO® Zane Kendo training pod with lenticular Zane image, plus a Zane minifigure, Kendo mask element and assorted ninja weapons inside.[1]