This is a 5 pack of round leatherette patches; each patch measures approximately 2 1/2" across. This rainbow leopard leatherette engraves black. The patch features a light silver stitching. The patch has a grey backing. Each pack comes with 5 pre-cut Durra-Bull Adhesive backers that can be applied as needed. Recommended Settings Posted settings are recommendations only. For best results it is recommended you attempt a small test area before moving forward with a larger design. Results may vary on each machine due to a variety of factors such as machine type, age, and maintenance.Recommended Glowforge Settings: To engrave we recommend a speed of 600, power 12, and lines per inch 225 Recommended 60W Settings: DPI 600, Speed 100%, Power 30% Recommended Glowforge Aura and Spark Diode Laser Settings: To engrave we recommend a speed of 100, power 4, and lines per inch 270. 30w Thunder Bolt Recommended Setting - Vector 35 speed, Power 70. To engrave 600 speed 30 power.