Changing an emergency flat tire just got easier. Designed for larger truck and SUV tires, Slime's Thru-Core emergency tire sealant allows for more sealant to seek out and instantly seal tread area punctures up to 1/4 in Dia. There is no need to remove the valve core. Slime's Thru-Core technology seamlessly injects the tire repair sealant through the valve stem directly into the tire. Then just air up your tire with an inflator to get back on the road quickly. Slime Thru-Core tire sealant is non-toxic, non-corrosive and tire sensor safe. This new easy install formula is tested and approved by leading automakers and cleans up easily with water.