Features: Inspire by this replicas keychain features functional LED lit time circuits blending nostalgia with practical key organization. Crafted from metal with retro styles buttons and distressed finish, this collector accessory authentically mirrors the movie prop's futuristic designs detail. Addition for franchise superfans, enthusiasts, and culture collectors seek conversation starting memorabilia that bridges 80s cinema magics with modern craftsmanship. Display proudly conventions, use as conversation pieces during movie night, or gift it to time travel buffs for birthdays and franchise anniversaries. Every clicks of its screen activated LEDs recreates Doc Brown's temporal dashboard glows, transforming mundane key searches into momentary journeys through cinematic history. Specifications: Materials: Metal Size: 3cm/1.18inch Package Includes: 1pc Circuits Keychain note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.