Post-It® Pop-Up Note Dispenser. A fresh note is always close at hand. 50. 3 in x 3 in (73mm x 73mm). 3M. Buy your refills now. Look for the pop-up note symbol. Weighted dispenser for easy, convenient one-handed dispensing. Includes one pad (50 sheets) of 3" x 3" Post-It® pop-up notes. Refillable Pop-up note dispenser lets you personalize your space and keep Post-It® notes at your fingertips. 3M Office Supplies Division. 1-800-395-1223. www.post-it.com. 3M, Post-it and The Color Canary Yellow are trademarks of 3M. ©3M 2011. All rights reserved.