Clearly Whimsy Stamps Collection "Dino Birthdays" clear stamp set, designed by Krista Heij-Barber for Whimsy Stamps. 

3 adorable dinosaurs ready to celebrate a roaring good time! Includes birthday sentiments and gift accessory stamps to complete the set. 
High quality photopolymer clear stamps, use with an acrylic block Approximate size in inches: 4x6 polymer sheet.
 
High quality photopolymer clear stamps, use with an acrylic block Approximate size in inches: 4 x 6