Small 982-0099
Medium 982-0102
Large 982-0103

Penguin Ambidextrous Vertical Mouse by Posturite is designed to help eliminate forearm pronation. It has fine cursor control and Bowtie switch that allows users to switch between right and left.

Features

• Available in three sizes small, medium, and large
• Adjustable DPI: select from four pointer speed settings 400, 600, 800, and 1200 DPI
• Rubberized oversized scroll wheel
• Bowtie Switch allows user to switch from right to left hand use.
• Has  fine cursor stability and pointer accuracy
• Eliminates forearm pronation 
• Also available in wired option and in three sizes small medium and large.

Specifications

• Base
• Small 4.88'' W x 3.88'' D
• Medium 4.25'' W x 5.38'' D
• Large 4.75'' W x 6.0'' D
• Height:
• Small 3.0''
• Medium 3.5''
• Large 3.88''
• Weight:
• Small 159 grams (0.159 kg)
• Medium 210 grams (0.210 kg)
• Large 241 grams (0.241 kg)
• System Compatibility : PC - Windows XP, Vista, and 7 and Mac - OS X
• Finish Black and Silver
• Interface 2.0 USB
• Manufacturer warranty 2 years

Sizing Guide: Measure in cm from the base of the wrist to the top of the middle finger. Size small 0-16 cm ( 0-6'' approx) , medium 16-18 cm (6-7'' approx), large 18+ cm (7'' + approx).