Bra strap, as many as patterns are printed. plastic and metal hooks and adjusters. TPU elastic tape, TPU filmMaterial: TPUUsage: GarmentWidth:4mm to ... , higher endurance than rubber.4. Super Light, Soft, smooth and economic choice for sewing.5. Free of azo, formalin harmful ... substances, safe to human body and ecofriendly.6. Washable, dry quickly, No shrink after washing.7 ...