Our PSA Essentials Holiday Peel and Stick Pack: Treeo will give your stamp design a completely different look! Each pack features original designs from PSA Essentials and includes 9 switchable middles plus 1 outer ring. Peel and Stick Packs are easy to use! Start with a personalized stamp or stamper from PSA Essentials, then change the design with the seasons! They can be used over and over again.