The hollowed box is made of pure cedar wood.
The cushion is made from indigo-dyed cotton velveteen, and the stuffed cushioning inside is made from sheep's wool. The raw wool contains a suitable amount of oil which acts as an anticorrosive, protecting the needles from rust.
Wood: Japanese cedar
Cushion fabric: 100% Cotton
Pad: 100% Wool
Size: w8×d5×h2.1 cm