BIG is a big ball of mega chunky yarn, for super-quick knitting and crochet. This is new old stock from my shop Pins & Needles in Devizes, just these few balls left. It used to be on sale in the shop at £7.50 per ball, so it's a bit of a bargain for you now at a fiver each. If I get it back in the shop at any time, the price will be back up to it's original, so strike now if you want a bargain.
Each 250g ball has approximately 75 metres of premium acrylic. It's machine washable at 40 degrees. Suggested tension is 5.5sts x 8 rows over stocking stitch on 15mm needles, or 4.5sts x 7 rows on 20mm needles. Most of my previous sales of this stuff have been to crocheters, I think they were freestyling, mostly for mega blankets. The yarn is safety certified, you can find all the details on the King Cole website.
You may of course arrange to pick up this product from the shop to save you the postage.