Parallel Bars Sit Up Sucker Aid Adjustable Floor Sit Up Exercise Device Indoor Equipment(Blue) The product is shipped based on the color or size of the main image of the product page. Colour:blue More Stable : The sit up aids use larger and thicker natural rubber suckers with larger force areas and stronger absorption force so that it is more stable during exercise.Adjustable Height : The sit up sucker aid has 3 stalls to satisfy different users height.High density Foam : The high density foam is soft and comfortable, gives a great cushion to feet during exercise and will not cause pain.Upgrade Support Bar Design : The support bar lengthens to 28cm to fitted feet length design and tightly wraps with foam, safer and comfortable.Convenient to Install : Wipe the ground clean and then press the wrench to attract, the extended handle is easier to fold, and it is more convenient to use.