Castle Composites Spacers Castle Composites Sale! from £5.00 (inc VAT) £4.17 (ex VAT) Bag Size 250 500 1000 Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Castle Composites Spacers - 2mm Spacers are available in bags of 250, 500 and 1000. 2mm long leg spacers are ideal for achieving the correct gap between tiles. Unlike standard tile spacers they have extra long legs for use with our promenade tiles.