Heat Transfer Guide - Tape and cover Black part, set Temp: 356F (185C), Time: 100 Sec. Settings slightly between different heat presses. DO NOT heat above 356F (185C) or they may melt Sub-ready - These blank sublimation phone card holders are made with sublimatable materials Personalized design: you can use your imagination to design distinctive letters and pictures, and then print them on the of the sublimated luggage label, you can get an attractive label that full of your own style, to show your personality Includes Adhesive Sticker - Once design is complete then easily attach phone wallet sticker to cell phone or desired . Compatible with most smartphones and case.Gift for any occasion - Valentine's, Birthdays, Thanksgiving, Christmas, Weddings, Parties, Promotional Events, Mother's Day, Father's Day, Halloween, Easter, Anniversaries and more size: about 9.7 x 6.6cm Material: PU leather colour: white black Package Contents: 20 x Sublimation Blanks Phone Wallet Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.