Elastic knob massage slippers Merry-go-round series Product style: elastic knob massage slippers Size: s, m, l Color: white knob, brown knob Introduction: elastic knobs move vertically and bring you joyful massage. Effectiveness 1. Cure tiredness, enhance immunity 2. Enhance the breathability of back skin, improve blood circulation and increase the massage effect. 3. Facilitate sleep and rellieve neurasthenia insomnia. 4. Health brain and relieve tensive nerve. Product introduction 1. Hard material with nice anti-friction. Environmental with no poison. 2. Black sole of slipper is skid-proof and shock-absorbent. Packaging & shipping 40 pairs/ctn Carton size: 62*33*53cm Shipped through cartons or pallets by lcl or fcl 40 pairs/ctn Carton size: 62*33*53cm