Revolve Stroller Parent Hand MuffKeep your hands and fingers comfortable, no matter the weather, with the Revolve Parent Hand Muff by Delta Children. A must have stroller accessory for parents in cold climates, this insulated Hand Muff attaches directly to the Revolve Strollers handlebar (stroller sold separately). The clear zippered window securely holds your cell phone and guards it from the elements while letting you operate your phone through the window.