Penny+Giles Trackerball - Tracball For PC
This trackerball is in excellent condition. It is very clean with almost no signs of use.
I tested this device thoroughly and all the features worked as they should. The tracball moved the cursor on the screen smoothly in all directions. The left button activated the icons on the screen consistently. The right button worked consistently also. The top button activated and deactivated the drag function correctly and consistently.
The Penny+Giles Trackerball is an easy-to-use, comfortable alternate input device for those who find the mouse or trackpads difficult to use. Its is designed for mainstream or special education classroom and has an extra button for click and drag function. The removable plate that helps locate and target the recessed buttons also helps prevent accidental activation of those buttons.
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