That is a Battery Pack!
And yes it does come with a built-in kickstand! It is also able to wirelessly charge your MagSafe compatible devices at up to 15W with ease.
More MagSafe Battery Packs
London Drugs near me?
Click on the location pin closest to you, get directions to a London Drugs close to you and purchase cool MagSafe compatible accessories like the Piston Power 5000 Stance Mag!