Metal clip with rubber silicone Quantity:100 Pcs per pack Super value bulkSpecial designed for hair extension and wigs, with little holes for linking or sewing the wig.Set and fit your wigs, hair extensions and hairpiece easily with these snap-comb clips.These ZZRRYY Snap Clips are great hair DIY accessories for U-part wigs, sewing to tracks for clip ins or sewn to the wefts of hair etc.