Men-nari Size S Kendo Suburi (Practice Swinging) For improving children's strength, developing proper hand techniques, for your own training, and for mastering hand techniques. This is an S size, allowing you to practice suburi at home, in your hallway, or in your room. It's the perfect item for training spatial striking. Please see the product's website for details. I am selling this because I have another one of the same item at home.