854034 Crossing Katanas is a Ninjago foam weapon released in June 2020.
LEGO.com description[]
Young ninjas will be thrilled to stride into role-play battles with these Crossing Katanas (854034) strapped to their back. New for June 2020, the two Kantanas come in a cool backpack and are displayed in sheaths decorated with a dragon, with both blades exposed. Kids can reach around to quickly draw them when they take on enemies and enjoy hours of adventures.
- The Crossing Katanas are two sword-like weapons showcased in an awesome backpack for kids to wear as they recreate NINJAGO® action scenes.
- A super-cool birthday or Christmas LEGO® gift to inspire fun creativity in kids aged 6 and up as they play out stories from the NINJAGO® realm.
- Measures over 14” (38cm) high and 7” (20cm) wide; just the right size for little ninjas to take into battles at home or when they are on the go.[1]