Everything except the bath additive is an amenity from the hotel where I stayed. I do not know the materials or other details. Medicinal bath additive x 1 item, Yuyado Meguri Arima, Milky Orange Bath Loofah-style sponge x 1 item, 14.5cm x 10cm Body sponge x 2 items, 11.2cm x 7cm 10.3cm x 6.2cm Nylon towel x 2 items (size unknown as it is unopened) Non-woven fabric towel x 1 item, 99cm x 22cm