Different shapes: package comes with 16 pieces of sublimation blanks keychain in 4 shapes, including 4 rectangular, 4 round, 4 square and 4 heart shape, the and style are sufficient, enough to meet your . Durable to use: these blank keychains are made of quality PU leather, soft to contact and light in weight, with a sublimation blank surface on one side and black polyurethane leather on the other side, , durable and generous. Sublimation process: these keychains are made by sublimation process, the front is blank, the heating temperature is 356 degrees Fahrenheit/180 degrees Celsius, and the heating time is about 50 seconds, you can the style you need on the blank side. Measurement: the heart shape is . 6 x 5.5 cm/ 2.36 x 2.17 inches, and the round shape is 5cm/ 1.97 inches in diameter, the rectangle shape is 3.5 x 7.5 cm/ 1.38 x 2.95 inches, and the square is 5 x 5 cm/ 1.97 x 1.97 inches. Meaningful handmade gift: you can print pictures of yourself, family, , pets or your favorite beautiful scenery on the blank side of the keychain, and make souvenirs for yourself or others, they will be surprised when received this gift. Colour: black + white Material: PU Package Contents: 16 * sublimation blanks keychain (square, rectangular, round, heart-shaped 4 each) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.