Firth Grey Block 190 x 390 x 240mm SKU: 431445 MODEL: 2505 Sorry, there is currently no online price available for this product.Contact your local store for pricing and availability. Mitre 10 SAvailable at selected stores. Check your local store for details Variants Open end and plain end masonry block 25.05. Features and benefits Hard wearing, durable and dimensionally accurate. Flush end block for aesthetic wall ends.