are britax car seat bases universal Britax Willow S Infant Car Seat with Alpine Base

are britax car seat bases universal Britax Willow S Infant Car Seat with Alpine BaseCLICKTIGHT(R) INDICATOR: Helps provide a visual guide while installing the base ROOM TO GROW: Willow(TM) S infant car seat, rear facing only; 4 to 30 lbs LIGHTWEIGHT & EASY TO CARRY: Move this car seat and base from car to stroller in a snap WASHER AND DRYER FRIENDLY: SafeWash(R) fabrics mean no more hand washing or waiting for the car seat cover and stroller insert to air dry. Just quick and easy cleanup, so you can keep moving NATURALLY FLAME

CLICKTIGHT(R) INDICATOR: Helps provide a visual guide while installing the base

• ROOM TO GROW: Willow(TM) S infant car seat, rear-facing only; 4 to 30 lbs
• LIGHTWEIGHT & EASY TO CARRY: Move this car seat and base from car to stroller in a snap
• WASHER AND DRYER-FRIENDLY: SafeWash(R) fabrics mean no more hand washing or waiting for the car seat cover and stroller insert to air-dry. Just quick and easy cleanup, so you can keep moving
• NATURALLY FLAME-RETARDANT FABRICS: This baby car seat features naturally flame-retardant fabrics that are safe to wash and dry
• INFANT INSERT PILLOW: This rear facing car seat is designed to provide a more comfortable and customized fit for newborns under 11 lbs
• SAFECELL(TM) TECHNOLOGY: Designed to help manage energy and minimize force transferred to baby
• REBOUNDREDUCE(R) STABILITY BAR: Alpine infant car seat base helps minimize movement in a crash; carry handle provides stability when used in the upright position
• PLUSH HARNESS PADDING: Travel car seat with an extra layer of cushioning helps prevent skin irritation and keep your child comfortable
• EASY FIND AND RECLINE: This car seat features level indicators and spring-assist recline that make it easy to find the correct installation angle for your vehicle
• SPACESAVER(TM) DESIGN: Slim outside, spacious inside; this infant car seat frees up backseat space while giving your child plenty of room for the ride