Strapping PW25 (61 ratings) £2.50 Quantity: at £2.50 each 50 in stock. Bag Strapping / Belting - heavy duty, Polypropelene - Black 25mm wide. Sold by the metre. Used for bag straps, belts etc. Making your own purses or bags is very easy and a joy to do (and addictive!) and especially when you have such gorgeous colours to choose from.