Approximately ¥7000
Part of the Walt Disney World 50th Anniversary Mickey Mouse the Main Attraction Collection
Series 1: Mickey x Space Mountain 
Design inspired by the Space Mountain attraction
Opening Ceremony keys were originally only given to guests who took part in opening a Disney Store
Key features 'Space Mountain' wording and artwork
15.5cm L x 7cm W x 1.5cm D
Vendor: Star Traders at Magic Kingdom