✅ Customizable buttons ✅ Trackball and numerous buttons for significantly improved work efficiency ✅ Ergonomic design that prevents hand fatigue, allowing for long hours of use without issue ☑️ Large size for a trackball ☑️ Wired (stress-free because you don't have to worry about charging or disconnection) - Brand: ELECOM - Model Name: Huge - Type: Trackball - Color: Black/Red - Connectivity: USB - Included Items: Instruction manual, box - Features: Ergonomic design Purchased from an outlet store, the box isn't in perfect condition, but the item is like new because it's unused! *For quality inspection, I have used it once, so I've listed it as "Like New." Please understand and acknowledge this before purchasing. Thank you.