We tried many brushes and found that some are too soft, some are made from unsustainable sources or following cruel animal practices. This is the perfect extra firm brush, that combines everything we look for in a lymphatic massager, and is aligned with our values. - oiled Beechwood - vegan bristles (made from sustainably sourced sisal - fiber from Agave leaves) - cotton hand strap - cotton pouch - Dimensions: 5.11 inches / 13 cm Dry brushing is an excellent all-over bodycare practice. It helps clean out toxins and boost immune function by stimulating the lymphatic fluid. It helps remove dried and dead skin, and brings blood flow to the edges of the body.