Currently out of stock. Compare Quick view Spyder MR6 Ball Stopper (Detent) Spyder Now: £1.70 Was: Replacement Spyder Ball Stopper for Spyder MRX/MR5/MR6 Currently out of stock. Now: £1.70 Was: Currently out of stock. Compare Quick view Qty in Cart: 0 Price: Now: £1.70 Was: Subtotal: Currently out of stock.