Wrist pain from long days at the computer is the main problem this vertical design addresses, keeping your hand in a more natural handshake position instead of flat on a desk. Walmart has it for $20, $4 off the $24 list price. Apply coupon code “5NYG7W7T” for a savings of $4. Shipping adds $6.99, or spend $35 to get free shipping. Buy Now at Walmart