Those of you that have one or several; which model do you prefer - 4 window or 6 window and why?
Also does it sit on the ground or do you have a platform?
Seriously thinking about getting one just want opinions. I have seen threads with other sit ups but the model is not always seen in the pics.
Also does it sit on the ground or do you have a platform?
Seriously thinking about getting one just want opinions. I have seen threads with other sit ups but the model is not always seen in the pics.
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