Features • Creative DIY Experience: Design your own unique art on these blank heart-shaped jigsaw puzzles, perfect for personalizing gifts and projects with your favorite images • Complete Puzzle Set: Each set includes 5 heart-shaped blank puzzles measuring 19 x 19 cm with a total of 75 pieces, ensuring hours of fun for family and friends • Easy Sublimation Process: Achieve vibrant results with a simple heat transfer method at 170-175℃ for 60-80 seconds, allowing customization with ease and precision • Cherish Your Memories: Create personalized puzzles that capture special moments, making each piece a beautiful keepsake to enjoy and remember • Thoughtful Gift Option: Give the gift of creativity and nostalgia with these puzzles, perfect for holidays and special occasions to show your loved ones you care Features: 1、BLANK PUZZLES: The sublimated blank heart shape jigsaw puzzles can draw pictures, you can sublimate your decorative photos or art paintings on it. 2、SPECIFICATIONS: Includes heart shape blank puzzles and bottom plates, 19 x 19cm in size, each puzzle set includes 75pcs components for DIY fun with family. 3、OPERATING RANGES: Sublimation puzzle printing temperature is 170？175℃, wait 60？80s, medium prure (temperature and time can be adjusted according to your machine). 4、MEMORY KEEPING: You can recall the past during the puzzle proc, and each sublimation puzzle you make will retain your valuable memory. 5、SWEET GIFTS: Sublimation puzzles provide warm and sweet gifts for your loved ones, and can also be used as a gift for every holiday to expr your heart. Specification: Item Type: Heat Transfer Puzzle Material: Paper Specification: A4 19cmx19cm 75pcs (Approx. 19 x 19cm / 7.5 x 7.5in) Package List: 5 x Blank Puzzles 5 x Bottom Plates Note: This product contains small parts and is not suitable for children under 3 years old, please store in a suitable place. Package List 5 x Blank Puzzles 5 x Bottom Plates