how long are britax car seat bases good for Britax Willow SC Infant Car Seat with Alpine Base

how long are britax car seat bases good for Britax Willow SC Infant Car Seat with Alpine BaseTravel with confidence with the Willow SC infant car seat. This travel car seat includes the Alpine car seat base for secure attachment in your vehicle. First time jitters? Gone. Britax is the only brand with ClickTight technology, so you know it can be installed securely on the first ride and beyond. The RightSize system provides adjustment points at the hips, shoulders, and between the legs to help you find the perfect fit from the start. The

Travel with confidence with the Willow™ SC infant car seat. This travel car seat includes the Alpine™ car seat base for secure attachment in your vehicle. First-time jitters? Gone. Britax is the only brand with ClickTight® technology, so you know it can be installed securely on the first ride and beyond. The RightSize™ system provides adjustment points at the hips, shoulders, and between the legs to help you find the perfect fit from the start. The ReboundReduce™ stability bar on the Alpine car seat base helps minimize movement in a crash for peace of mind while you’re on the move. Made for multitasking, this Britax infant car seat features an aluminum carry handle that easily adjusts with one hand to keep the other hand free. The lightweight design makes transport a breeze, and the SpaceSaver™ design frees up backseat space while giving your child plenty of room for the ride. Plus, the removable car seat cover is washer and dryer-friendly, which means no more hand-washing or waiting for fabrics to air dry. When it's time to cruise, you can attach this car seat to the Britax Brook™, Brook+, or Grove™ stroller in both parent-facing and forward-facing modes.

• Infant Car Seat and Base: The Willow™ SC infant car seat includes the Alpine™ car seat base
• Comfortable Fit: Designed for rear-facing use only for 4 to 30 pounds and up to 32 inches
• Install Confidently: Britax is the only brand with ClickTight® technology, so you know it can be installed securely on the first ride and beyond
• ClickTight Indicator: Helps provide a visual guide while installing the base. *Indicator window may vary by model. Refer to user guide for specific instructions.
  
• Find the Perfect Fit: The RightSize™ system provides adjustment points at the hips, shoulders, and between the legs to help you find the perfect fit
• Ultra-Portable: This baby car seat features an aluminum carry handle that adjusts easily with one hand
• Easy to Clean: StayClean™ and SafeWash® fabrics resist stains, moisture, and odors and are safe for the washer and dryer 
• No Added FR Chemicals: Fabric is naturally flame-retardant with no added FR chemicals
• SafeCell® Technology: Manages energy and minimizes the force transferred to your baby
• Side Impact Tested: Helps protect your child’s head, neck and torso for peace of mind
• ReboundReduce™ Stability Bar: Helps minimize movement in a crash
• Quick-Push LATCH Connectors: These connectors help you lock it into place securely with a click and release with the push of a button
• Easy Recline: Spring-assist recline lets you find the perfect installation angle with level indicators as a guide
• Plush Comfort: Extra cushioning on the harnesses and infant insert pillows offer safe, comfortable rides
• Infant Insert Pillows: Designed to provide a more customized fit for newborns under 11 lbs; made with plush fabrics for premium comfort
• Base-Free Stability: Extra belt path on the back of the seat for added security when installing without the base
• Easy In-and-Out Design: The harness holders and flip-forward belly pad make it easy to get your baby in and out
• SpaceSaver™ Design: The slim design saves space in your backseat while leaving enough room for your little one to ride comfortably
• Sun Protection: A UPF 50+ canopy and flip-out sun visor shield your baby from the sun
  
• Peek-a-Boo Window: Check on your little one through the peek-a-boo window with the quiet magnetic closure
• Compatible with Our Strollers: This 5-point harness car seat is compatible with the Britax Brook™, Brook+, and Grove™ strollers