... 2.ROHS&SGS 3.useful and convenient 4.DIY self stick hair rollerMaterialvelcro fabric with sponge layer insideSizeany size are availableMOQ3000pcs ... , repair material(PVC/TPU), zip oil, rope, glue, ect.Packagestretch film, bag&cartonusage swimming pool,beach,water park,lake,river,shoaling ... ,we are gald to answer you all the time self stick hair roller