我明白了你的意思，我再次去查询了一下，这几种颜色的尺寸是一样的，我也去

I understand what you mean. I checked again. The sizes of these colors are the same. I also asked the relevant person in charge. The answer to me is that the current chest strap only has this size, and this The sizes of the three colors are the same. The description of the size on the picture should be correct. The size of the description may be wrong. We have investigated and revised it. It is normal. I am very sorry for the inconvenience caused, and thank you again for your love for our products. If our products meet your needs, welcome to order!

I see what you mean. I checked again. The sizes of these colors are the same. I also asked the relevant responsible personnel. My answer is that at present, the chest strap has only this size, and the sizes of these three colors are the same. The introduction of the sizes on the picture should be correct. The sizes on the description may be wrong. We have investigated and modified them, We are very sorry for the inconvenience caused by our mistakes. Thank you again for your love of our products. If our products meet your needs, welcome to order!

I see what you mean. I checked again. The sizes of these colors are the same. I also asked the relevant person in charge. My answer is that this chest strap is the only one size at present, and the sizes of these three colors are all the same. The description of the size in the picture should be correct. There may be a mistake in the description of the above size. We have investigated and revised it, and it is normal. I feel very sorry for the inconvenience caused by our mistake.