Inkadinkado Songbird Mini Clear Stamp Storage backer sheet included 2-Piece sclear stamp sheet size: 2-1/2-inch by 2-1/2-inch Self clinging and repositionable-can be used over and over again for versatile stamping Requires clear acrylic mounting block to use Slim design for easy storage Storage backer sheet included 2-Piece clear stamp sheet size: 2-1/2-inch by 2-1/2-inch Self clinging and repositionable-can be used over and over again for versatile stamping Requires clear acrylic mounting block to use Slim design for easy storage