Made of iron, solid one piece, and on heavier side as to be expected. Compared to other Sai, these are more tapered, especially the saki (pointed ends). String handle wraps are well done. These are not coated with a finish as the picture suggests, simply bare iron metal. I purchased the 20.5" size. The Tsuka (handle) is 5", the Moto (intersection of the prongs) is 1", and the Monouchi (shaft) is 14" long. I'm 6' tall, my arm measures 19" long from middle finger tip to elbow, so the Saki (tip) comes right up to my elbow when held in traditional defensive position (Moto cupped in palm); a good fit, luckily. The only modification I might make is put a simple rubber wrap over the handle string for a better grip circumference. Overall, they seem well made and should last for years beyond my life time. So far, I'm happy to have made the investment (purchased July 2024).

En general, se ve bien en forma, aunque es negro mate, imagine que sería negro brillante, peso y tamaño me parecen muy bien; aunque la punta principal no es tan aguda; es octagonal, la calidad y resistencia final se verá en el entrenamiento, al momento, estoy conforme con el producto, lo usare para entrenamiento. Como nota adicional me llego dos semanas entes de lo anunciado.

Been looking for something similar to old shurei do quality. Not perfect but for being on Amazon I was very surprised!