I am a wired-loving trackball enthusiast! The item for sale is a fully customized, used: - Kensington SlimBlade This includes: - L-shaped USB adapter [Customization Details] - Custom color (Italian Red + Black) - Support ball changed from ruby to G5 ceramic ball - Switches replaced with silent buttons in all 4 locations - Cable shortened (approx. 40cm) [Color] - Painted with lacquer spray * Please refrain from purchasing if you are concerned about minor imperfections due to amateur craftsmanship. - Both the upper and lower housings are painted. - The color may differ slightly between the photos and the actual product. Please understand this. [Maintenance] - I have disassembled and reassembled the entire unit as a personal hobby. - Maintenance Points □ Housing washed with water □ Chattering prevention → Silent buttons have been installed □ Circuit board cleaning ← Removed dirt with anhydrous ethanol if necessary - Inspection Points □ Connection to a computer □ Button check using a tool □ Ball scrolling - Finishing Touches □ Ball has been treated with Bonanza Please ask any questions in the comments.