Shenzhen K-Paladin Electronic Co., Ltd  

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Material: ABS plastic
Information: Optical mouse
Connection port: PS/2 or USB available
Key stroke life: Five million times
Computator: Compatible with Windows 95/98/NT/ME/ 2000/XP/Vista/Windows7
Specification(m): 127x70.5x44.5mm
Outer packing: 525x445x367mm
Packaging: 40PCS/CTN