Add a Maxi-Cosi Mico XP Max infant car seat base to your family's second car, so you're ready to travel when you need it. The base is adjustable to ensure a good fit in your vehicle, with a one-click auto-retracting UAS system for easy installation. An improved safety feature is the anti-rotation stability leg which limits back and forth movement for maximum head and neck protection. Red-green tension indicators provide visual confirmation of accurate installation, whether using vehicle belt or UAS installation. The base also features an integrated belt locking device for easy and secure seat belt installation. With an extra base, there's no need to slow down to reinstall the base when you want to get out. Just strap in your car seat and hit the road.