"Silicone Trigger Point Ball Size: 6.3 cm - Helps to relieve knots in your muscles that are also known as trigger points, which lead to Myofascial Pain Syndrome. - Relieve tight muscles in the lower back, neck & glutes - Great tool to help release and achieve melting of minor aches and pains to muscular tissue. - Material Composition : Silicone Deep Tissue Roller Stick Size : 14.5” - Increases blood flow to hurting and sore muscles in calves, quads, hams & thighs - Reduces lactic acid & improves sports performance Foot massager Size: 5 cm - Relieves stiffened muscles and tissues in hands, arms, legs & feet - Stimulates & soothes any sore or tired muscles when you roll it under your feet Mini Travel Foam Roller Size : 5.1" x 4.7" - Eco-certified EVA foam, SGS passed - 100% raw material, EVA foam - Unique design with dimpled surface for deeper massage to relieve muscular pain and tightness similar to the thumbs of a massage therapist