... gel ball has non-toxic,tasteless 2.Meterial:food grade silicon gel 3.Diameter:15mm~45mm 4.FDA ... Material:100% silicone2. Color: white3. Size: 45mm4. specificationφ15,φ20,φ25,φ28,φ30,φ35,φ40,φ455. Usage ... : Used in medicine, mineral, machinery, food, metal metallurgy, vibrating screen, etc. In vibration ... Rubber Products producing process: Food grade white silicon gel ball for industrial