For me, it's Kensington Slimblade¹ sunk into a desk cutout, since wrist extension (bending up/back) is an RSI problem for me. ¹ https://www.kensington.com/p/pr

For me, it's Kensington Slimblade¹ sunk into a desk cutout, since wrist extension (bending up/back) is an RSI problem for me. ¹ https://www.kensington.com/p/products/electronic-control-solutions/trackball-products/slimblade-trackball/ https://www.kensington.com/p/products/electronic-control-sol...