these sublimation dog collars are ready to be personalized using sublimation or htv . approximately 2CM wide and adjustable from about small - 11.5 - 18. inches Medium - 13.8 -22 inches Large - (2.5 cm)1 “ wide x 16.5 - 26 inches adjustable Black polyester with imprintable white panel and black plastic buckle Pressing instructions: Print your design mirrored Place plain paper on top of the heat press Tape the dog collar to the two pieces of plain paper using a heat resistant tape in order to secure it. Make sure that the plastic edges of the collar are not on the platen Place another two pieces of plain paper and pre-press the dog collar for a 4-5 seconds before placing the transfer paper Remove plain paper, place transfer paper and align it with the collar. Secure it using a heat resistant tape Place two pieces of plain paper again and press it for 120s at 360F Remove blank sheet and transfer paper immediately and carefully as it may be hot Remove the securing heat resistant tape and let the collar to cool down