YINGKAI DIY Halloween Party 15pcs/pack Black PVC 3D Decorative Bats Butterfly Wall Decal Wall Sticker, Halloween Eve Decor Home Window Decoration Comes with easy to apply instructions Easy to apply to walls, doors, glass and other hard surfaces with application instructions Material: waterproof pvc color: black Each pack totally includes 15pcs pvc material bats, 16cm x 4cm/each x 5 big bats , 14.5cm x 4.5cm/each x 5 medium bats and 11.5cm x 3.5cm/each x 5 small bats For use on smooth walls -- can also go on glass (inside only, not outside)