Originally made in China, the deterioration was intense and cracks were in the vicinity of the tube. It seems that you will be able to use it for ease if you purchase this one more than repair. I will also tell the members.
There is a bad tube in the house tire 's China tire, 3 out of 4 punk. It was 2.50 - 4, but forced to use 3.00 - 4 tube by pushing it. Since it is not a ride but a wheelbarrow, it is good because there is no safety problem. If possible, I would like you to sell 2.50-4 tubes.