Is the exact same size as the original switch. Can't beat the price and shipped to me fast. Highly recommended if your Dyson power switch won't stay "stuck" (on).UPDATE 1/9/12: This switch stopped working consistently. Now I have to mail it back for a refund. But it's not worth mailing since it cost $5. I guess I have to either just keep buying them until one works for more than a couple months, or find another supplier.