Minireen 2Pack 3.50/4.00-6 Tire Tube with TR13 Straight Valve Stem Fits 4.10/3.50-6 13x4.00-6 13x5.00-6 145/70-6

I needed these for leaky tires on our garden cart. They are a perfect fit, were relatively easy to install and so far, seem to be performing well. My fear was that I had grass burrs poking through the tire itself that would immediately cause a leak in the inner tube. So far that's not the case. After several days they are holding the air just fine.They feel heavy duty and fit my 3.50/4.00-6 size wheel/tire assembly perfectly.In the few days I've had them, they have performed well whether hauling groceries from the garage to the house or hauling firewood behind my riding mower from the back part of the property. I'm impressed at the quality they evidently have.I have more carts that need tubes, so I'll certainly be ordering more in the future.These were priced well below what I could purchase replacement inner tubes locally for, plus were a good price compared to other choices on Amazon.

Seem heavy duty . . . thicker material than the tubes I’m replacing. Would be a bit better if the valve stem was rotated a bit to the outside . . . Valve stem holes in tire rims are offset from the hub area of the wheel. Otherwise it fit and installed OK. Haven’t had these installed long enough to rate durability.

These are perfect for a garden tractor cart.

After spending more money for a pair of tubes from a company that I did not know, I sent them back because they split at the seam when inflated, I purchases these. I mounted them by hand, which was not easy for some one my size, then inflated them to 30 psi. It has been a couple of weeks, and they have performed well. Tires have not lost any air pressure. I am satisfied with these tubes. Mike Smith

Arrived on time and fit perfect. They seem like good quality tubes.