The unique pop-up design allows for quick and easy preparation with no assembly required. Butterflies are easily transferred in through a discreet top opening and can be released by untying the top ribbon. This cage provides the perfect combination for those who desire to display the beauty of the butterflies, but also enjoy the elegance of their flight upon release. Holds up to 25 dozen Painted Lady butterflies or 8 dozen Monarch butterflies. Butterflies must be ordered separately.