Features: This multifunctional sensory toy combines stress relief features with portable convenience, offering clickable sound effects and color changing Crafted from ABS and metal, this pocket keychain features LED lighting, responsive pressure activated sound module, and secure attachment clip for everyday carry as both functional accessory and relieving gadget. Ideal for keyboard enthusiasts, office professional seeking desk distractions, students managing study stress, and anyone needing stimulation for improved focus and emotional regulation. Perfect companion for workstations, classroom pencil cases, travel backpacks, providing sensory engagement through its satisfying clicking mechanism and eye catching glow during commutes or concentration breaks. Combines practical key organization with therapeutic play – a thoughtful gift for lovers and stress prone individuals needing discreet that through auditory visual and ergonomic design. Specifications: Component:Metal+ABS Size:Approx.4.5x3.5cm/1.38X1.77inch Package Includes: 1Pc Keycap Keychain note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.