Our product dimensions are all based on net length. Product Name: 3# Invisible Zipper 60cm/50cm/40cm, 3# Nylon Invisible Zipper Length: Customer's choice, standard sizes: 18/20/25/30/40/50/60cm Features: Invisible, automatic, anti-skid Applicable Scope: Clothing, apparel, home textiles, women's clothing, pillow, luggage invisible zippers Styles: Both open and closed tails can be made Direct sale by the manufacturer, in stock supply of 3# invisible zippers 20cm/30CM/40cm/50cm, 3# nylon invisible closed tail zippers wholesale, quality assurance. Our quality does not burst teeth, do not card teeth, do not crack. Smooth and free, no worries in use, quality and quantity. More favorable for large quantities, for specific details, please consult our store customer service.