Avery Elle Clear Stamp Peek A Boo Balloon is great for all those pals and more!! The Peek-A-Boo Balloon stamp set can be a new addition to your Peek-A-Boo collection! Add any of the pals or pets from Avery Elle's Peek-A-Boo sets to create a fun hot air balloon scene. This set can be used for any greeting or occasion. 11 total stamps. Hot air balloon stamp measures: 2 3/16" x 3 5/8"; cloud stamp measures: 15/16" x 7/16"; "birthday wishes" sentiment stamp measures: 1 11/16" x 3/16". Our Exclusive clear stamps are proudly made in the USA.