marron

栗の形をした床に置いて使うつぼ押し。 旋盤で手作業で削ってつくるため、ひとつひとつ微妙に形が変わる。

It is massage goods in the shape of a chestnut to use it on the floor. marron is made by hand on a lathe, it's shape will change one by one.