Popular Blue Bamboo Foot Flies. Foot trigger point massager This is an easy and easy health device that stimulates pressure points on the soles of your feet often seen on TV. Handmade by Japanese bamboo craftsmen using natural bamboo from Japan. By stimulating pressure points on the soles of your feet, it is expected to promote blood circulation, so you can feel the exercise effect just by swelling your feet 1, 2, 1, 2, and 2. You may feel a little pain at first, but if you get used to it, it may become more comfortable and please try our best for 10 minutes or 5 minutes before you sleep every day. If your body is snug, it will be easier to sleep in winter. Please be aware that these effects may vary by individual.