change color shape rubber bands 1.silicone material 2.Passed CE,LFGB,SGS,FDA certificate 3.Customzied design is welcome. change color shape rubber bands 1.silicone material 2.Passed CE,LFGB,SGS,FDA certificate 3.Customzied design is welcome.shape rubber bands Brief introductionBrand nam--Mofairhome Item number--HB01 color and size--any is availiable (have change style) Certification--CE,LFGB,SGS, ...