Massage balls 4 (1 large, 1 medium, 2 small) are in 2 places, massage by rotating (normal rotation / reverse).
It unravels the neck of the neck.
You can also use it on your back and waist.

Maker / Brand	Crocio (KUROSHIO)
Product name	Neck massage also goes
Product size	W40 × D 56 × H 17 cm
Product weight	About 1.6 kg
Material	Synthetic leather
Classification	Made overseas (China) / medical equipment
Advertising censure	Pure Create Co., Ltd. TEL: 048-529-7355