Bosal In -R-Form Shoulder Strap roll (8 ratings) Foam stabliser, which is fusible on one side . perfect for bag making and all sorts of craft products £9.99 Quantity: at £9.99 each Add To Basket 1 in stock. Fantastic Pre Cut In-R-Form for creating perfect bag handles. Simply iron your fabric to the In-R-Form and attach to your bag for perfectly parallel soft and non-roll handles. A short information sheet comes with each roll. In-R-Form is also perfect as it relieves pressure and distributes the weight of the bag far more than a 'normal' fabric handle ever could resulting in a lovely, cushioned finish. 1" wide x 10 Yard Roll.