BioThane® Reins From £35.00 Colour: [Choose]BlackBrownOther 0 characters left. Brass (+£3.00): [None]Add Brass Buckles (Special Order) Quantity: at £35.00 each Add To Basket BioThane® reins are made with conway loops and clip ends.They are 2.8 metres long.The reins also feature a centre buckle for extra safety. Opaque and translucent Biothane have a shiny, high gloss finish. Beta has a similar finish to leather. See chart for colour options. Add colour code to box and allow 28 days for these to be made.