A zombie survival kit that includes medical supplies? That's good. It also has nutritional bars and water purification tablets.
But this is really more of a generic disaster kit than a true zombie survival kit. There's nothing wrong with that. But what separates the Zombie Apocalypse from other natural disasters is the fact that you will be required to defend yourself. You need weapons. It's not an option. With weapons, arguably, you can buy time to scrounge for the other necessities.
No kit is perfect, so understand the weaknesses and supplement.