The Bath & Body Works APPLE CRUMBLE Wallflower Refill Bulbs come in a pack of 2 new boxes, each containing 0.8 fl oz of liquid air freshener. The clear glass bulbs are designed for wall plug-ins and emit a pleasant apple crumble scent. These Wallflower refills from Bath & Body Works are an easy and convenient way to add a fragrant touch to any room in your home.