Why choose this hand cushion? 1、 he is a gel cushion Armrest Pad, when the weather is hot, you can lower the temperature a little, so that you feel a little cool. 2、 this gel cushion strap is very long, it is suitable for chair armrest more than 4 cm chair. Note: The chair armrest is relatively narrow can also be used, but it will slide left and right during use. 3、this condensation armrest pad can adjust the height of the armrest, so that our arms are more comfortable. 4、The gel cushion is easy to install and can be subtracted if the strap is too long.