The Famous Wind Up Flying Butterflies Are Not Prewound - You Must Wind Them And Put Them In The Box. Box Designed And Crafted With Quality Materials And Is Custom Made To Fit Up To 12 Of Our Famous Wind Pp Flying Butterflies. Flying Butterflies Are 4.5 Inches Tall X 5 Inches Wide And The Box Is A Cube That Measures 5.25 Inches Tall X 5.25 Inches Wide. Flying Out Of A Colored Butterfly. It's Not Meant To Be A Huge Surprise When Opened, But It Does Offer A Bit Of Flair Or Drama To A Moment Like A Birthday Greeting. No Battery Required, Rotate Its Wings (Rubber Band) And Then Clip It Between Pages. Package Includes : Pack Of 6pcs Of Magic Fairy Flying Butterfly With 1pcs Dark Blue Colour Exploding Box 1 Blue , 4 Panel Gift Box With 3 Separate Fall Down Sections On Each Of The 4 Sides Of The Box (See Example Photos Above) For A Total Of 12 Fall Down Panels For You To Decorate. Box Does Not Come Decorated! 6 Famous Flying Butterflies To Put Inside The Gift Box (Choose The Color/Style Above). The Famous Wind Up Flying Butterflies Are Not Prewound - You Must Wind Them And Put Them In The Box Flying Butterflies Are 4.5 Inches Tall X 5 Inches Wide And The Box Is A Cube That Measures 5.25 Inches Tall X 5.25 Inches Wide. Hide It In The Pages Of The Book Or In The Greeting Card Or In A Gift --- Flying Out Of A Colored Butterfly. It's Not Meant To Be A Huge Surprise When Opened, But It Does Offer A Bit Of Flair Or Drama To A Moment Like A Birthday Greeting. No Battery Required, Rotate Its Wings (Rubber Band) And Then Clip It Between Pages. Is A Good Way To Encourage Children To Explore The Fun Of Physics.