cave_vines_head_with_berries

Hello ladies and gentleman, today I will be showing you how to get a weird block in Minecraft!
Commands used in this video :

/setblock ~~~ cave_vines
/setblock ~~~ cave_vines_body_with_berries
/setblock ~~~ cave_vines_head_with_berries

This is Minecraft PE exclusive (I'm not completely sure tho)
I also just figured out that you can climb them!