[Description] MATERIAL---Durable WOOD base_ nylon strings_ metal balls_ stainless steel frame SWING TIME---The balls continue in perpetual motion FOR ONLY 15-25 SECONDS due to the resistance of the air and friction DISADVANTAGE---We can not create a vacuum environment_ so the balls will have some space when it is working_ but it won``t influence the effect of playing APPLICABILITY ---You can put it on your office desk or your home desk or on your shelf. It will be cool desk toy AFTER-SALE WARRANTY -- If_ for any reason_ you are not completely satisfied_ please contact us by email so that we may address your concerns
Technical Details
Product Details Product Dimensions Package Dimensions Width : 7.9 inch Height : 7.2 inch Length : 9.6 inch
