King Charles III Royal cypher mylar balloons fit for a coronation! These can be used as both indoor and outdoor decorations. They come with a stick and a stand to secure the balloon wherever your customers place them. One Balloon. Note that these are NOT helium balloons and won't float on their own – they inflate with air only. Comes in one size – 11" x 11" (27.9 cm x 27.9 cm) – perfect for easy transportation. .: Material: coated mylar .: One size: 11" x 11" (27.9 cm x 27.9 cm) .: Matte finish .: Balloon stick and stand included .: Suitable for indoor and outdoor use .: Inflate with air only