EEEKit 2-pack Mini Retractable Cable Wired USB Optical Mouse - Great for Kids & Travel for Apple Mac HP Dell Lenovo Thinkpad Sony Asus Acer Tablet PC Laptop Dimensions: 3inch (76mm) x 1.57inch (40mm) x 0.98inch (25mm) 3 buttons: Left Button, Right Button and Scroll Wheel. 4 colors available Retractable cable fully stretched to 80 cm;pull the cable to extend or retract. Pricise clik;plug and play; Works with Windows 2000, XP, Vista, 7/8/10 and Mac OS X Small size, easy to carry, perfect for travel;kids frendly as well