On Sale Add to Cart Compare Quick view JAVIS Tarmac Ballast Underlay Extra Fine 120cm x 30cm MSRP: Now: £3.50 Was: £4.99 A tarmac ballast underlay mat approx. 120cm x 30cm A bag of matching tarmac ballast is also available separately (code JS85) Click here to view the matching ballast MSRP: Now: £3.50 Was: £4.99 Add to Cart Compare Quick view