The material selection of massage sticks is very diverse, and different countries and regions may have different materials. Generally speaking, the material selection of massage stick depends on its manufacturing process, application scenarios and market demand.

Some common massage stick materials include:

1. Wood: Wood is a common material for massage sticks, which is natural, comfortable and soft. For example, sandalwood, ebony and rosewood are common wood materials.

2. Plastic: Plastic is a common material for massage sticks, which is light in weight, easy to process and durable. For example, polyethylene, polypropylene and polystyrene are all common plastic materials.

3. Metal: Metal is a common material for massage sticks, which is hard, durable and easy to process. For example, stainless steel, brass and aluminum alloy are all common metal materials.

4. Rubber: Rubber is a common material for massage sticks, which has the characteristics of softness, comfort and durability. For example, latex and styrene-butadiene rubber are common rubber materials.

In a word, the material selection of massage stick depends on market demand, usage scene and production technology. When choosing the material of the massage stick, we should consider the comfort, durability and safety of the material to ensure that the massage stick can provide a comfortable, safe and effective massage experience.