Building Supplies
Tarmac Ballast - Major Bag
This Tarmac Ballast is a mixture of sharp sand and small stones or gravel used to make concrete for a variety of landscaping uses from path edgings and shed bases to kerbs and securing fence posts.
https://www.bizrate.co.uk/buildingsupplies/tarmac-ballast-major-bag-oid30816451672.html