Compatible With Rolls And Fanfold (Stack) Labels; Works With Thermal Printers And Many Other Desktop Label Printers. Use This Label Holder To Keep All The Labels Always Aligned, Making Printing Multiple Sheets Easier & Smoother. Maximum Roll Diameter Is 7 Inches. Fanfold Labels Maximum Size Is 7X 4.3 Inches. Ideal For 4? X 6? Shipping Labels And Fba Labels And Other Different-Size Label Paper. Compact And Lightweight, The Size Of The Label Holder Is 7.8 X 5 X 6 Inches. Included Is An Assembly Guide, The Thermal Label Holder Is Easy To Assemble In Seconds.