To provide wood roll chips which can make an efficient use of woods.

Woods bear a means of guarding themselves. Because woods excrete odor or tree sap which insects and worms dislike or have components killing bacterium and microorganism. Excellent points in the extraction and the analysis of the components are recognized anew by the development of the techniques. However, in spite of many research data, there are few means to practice them. Further, since the affection of the components has differences among individuals, it is necessary to confirm the extent to which the actual use the components affects individuals. Though there have been products utilizing components by making woods in a globular shape or into chips. There have been no products excellent in economic efficiency and functionality, and produced easily. The wood roll chips are produced by selecting woods based on research data on a bioactivation function of the wooden components, and processing the wooden components into easy usable roll chips. In order to make it a first point to confirm the phenomenons shown in data of the wooden components through actually our bodies, a lowest price to buy, a versatile shape, and a simple manufacturing method are required.