Usage Tips:20x8.00-8 inch TO 20X10.00-8 inch REPLACEMENT INNER TUBES - Fits vehicles with an 8-inch rim diameter and a tire width is between 8 inches to 10 inches. Check your tire"s sidewall. If it indicates your tire size is 20x8.00-8 inch, 20x10.00-8 inch, 20x10-8 inch, and 20x8-8 inch, then these 2-pack inner tubes are a for your tires.UNIVERSAL FIT INNER TUBES WITH TR13 STRAIGHT VALVE STEM - These inner tubes are with riding lawn mowers, tractors, golf carts, garden trailers, tillers, snowblowers, and ATVs. The TR13 straight valve stem is the standard for universal inner tubes for lawn mowers and other utility inner tubes. This valve stem is covered with rubber and has a 1.5-inch offset from the center of the tube. rated maximum psi is 60. At 1.38 inches long, it fits 1/2-inch rim holes and can be adapted for up to .625-inch rim holes with the of B6 rim bushing. WITH EXPLOSION-PROOF INNER TUBES - Avoid punctures with an inner tube creates an almost instantaneous airtight seal around punctures. This prevents both damage on the vehicle and injury on your part. And with the internal sealing, you can be kept safe in any season or weather.EASY NO-TOOL INSTALLATION - In a rush? You definitely "t have a lot of time to waste even on a regular day. Thankfully, installing these replacement inner tubes would only take less than 5 minutes of your time. You"ll be back working in your garden or field in no time.It works with lawn mowers, tractors, hand trucks, wheelbarrows, garden, flat carts, yard trailers, wagons, generators, snow blowers, pressure washers, compressors, wood chippers, Tillers, golf cart, ATV tire.This Inner Tube is Made with premium-quality, heavy-duty rubber, these inner tubes are highly durable and perfect for professional and commercial/industrial, homeBefore installing, check to see if the inner tubes are completely sealed by putting in water,if there are any bubbles, they are already damaged. Type:Inner TubesColour:blackMaterial:rubberPackage Contents:2 x Inner TubesOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.