From Cybex, these adapters feature: The Cybex Gazelle S adapters allow you to fit select Britax® infant car seats to the frame of your stroller The adapters convert the Gazelle S into a convenient travel system, making it easier to transition baby from the car to stroller Compatible with Britax® B-Safe 35, Britax® B-Safe 35 Elite and Britax® Endeavors' infant car seats Compatible with CYBEX, Maxi-Cosi® Mico 30 and Nuna PIPA™ infant car seats Easy installation Includes 2 adapters Measurements: 3 L x 1.25 W x 6.5 H Weight: 0.8 lbs. 100% Plastic Wipe Clean NOTE: Registered trademarks are the property of their respective owners. Third-party trademark owners have not endorsed this product. Imported.