★ Product description<br /><br />Size:16"-20"<br />Color:,Purple,Black<br /><br />☆ Good Flexibility：Can adjust the angle and the height of head pillow according to your need.<br />☆ Main Material：Breathable mesh and sponge head pillow; Al-alloy brace.<br />☆ Product Features: U-type sponge mesh pillow, anti-side inverted, can reduce the head pressure, more breathable, light, more refreshing.<br />☆ Convenient： When you dont use it or want to close the wheelchair, you just need to remove the headrest part.<br />☆ Easy to install and use, instructions is included.<br />☆ Can be used for "16-20 ” seat wide wheelchair, sitting stool.<br /><br />★Instructions for use:<br />Place the curved bases on the left and right push hand tubes of the wheelchair, and insert the U-shaped base into the right and left sides of the curved base. Adjust the width to fit the size of the head tube. Insert the head tube to the marbles to jump out and turn. The U-shaped base adjusts the front and rear position of the head. After determining the position, lock the knob with the arc base and the knob of the U-shaped base; move the headrest up and down to a suitable height.<br />☆Tips: Press directly on the head of the tube on the pop-up, pull out the head, do not take off the U-shaped and with a curved base, the wheelchair can be directly folded