Double-sided tape on the back (Photo 2 shows the back with double-sided tape attached) - Color: Black - Material: NBR (Nitrile Rubber) - Size: Approximately 25m x 16.5cm, Thickness 6mm, Hardness 60° - Quantity: 2 sheets Made of oil-resistant synthetic rubber, used around oil-related areas. It's resistant to oil (but not gasoline) but not very weather-resistant, so it's not suitable for outdoor use. The 60-degree hardness is relatively soft and flexible, making it suitable for seals and gaskets. It can also be used as a buffer material under bicycles and motorcycles. Also useful for height adjustment and leveling uneven surfaces!! Convenient with double-sided tape!! Although new and unused, these are remnants. Some fingerprints may be present. Will be shipped in simple packaging (using recycled materials). Shipping only on weekdays. Thank you for viewing.