Makiwara

Yoyogi RyuShinKan dojo has several makiwara or "striking posts."  The two on the outside are flat and are used to practice frontal strikes and kicks.  The one in the center is cylindrical and can also be used to practice mawashigeri, furizuki and other techniques that come from the sides.

This link provides a good overview.

The article has some sound general advice:  

"Always check, before and after practice, that your implements are in good condition and clean. Also put everything that you use back in the correct place afterwards. This is an important habit to develop in your dojo with all equipment..."

Equipment should be used respectfully and the dojo should be kept clean and orderly at all times.