Printed Window Glass 1x 4x 6 - Missile Detection HUD It's always handy to have a bit of warning if a missile is heading your way... so now with this incredibly detailed Custom print Missile Detection HUD you can keep track of what's going on in the LEGO airspace. Grey studs not included. This design has been created by our very own LEGO loving print team at the Firestartoys print studio. The design is directly printed on to the LEGO parts for a perfect & play resistant finish, no horrible stickers or vinyl, just pure printed awesomeness.