Product Name: Tilt adjustment disc pad for trackball mouse
Nice little accessory for trackball tilting. Idea of making it in the shape of skewed disc is really smart: independent rotating of both the trackball and its support gives quite broad range of possible positions, and allow fine adjustment. Many people prefer angled position of trackball for better comfort, and often 3D-print custom supports for particular model, or use suitable objects like doorstops for that. Having dedicated device for that purpose is quite good option.
Upper surface is made of rubber, so most trackballs are very stable on top of it. Bottom have rubber strips, preventing unintentional movement on the desk. Inclination angle is 20°. 12cm diameter makes it suitable for medium-sized trackballs like Logitech Cordless Trackman FX, Kensington Orbit Fusion and similar.
For some strange reason Elecom says it's for "thumb operation type trackball", but of course it equally could be used with classic finger-operated trackballs:
I often change trackballs, and use some of them with and without wrist rest, to avoid keeping the hand in "fixed" position: probably, this thing also will be included in my rotation scheme.
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