Expanding foam for posts

I'm selling a new bag of Sika Post Fix expansive foam for posts. It's a lightweight alternative to concrete for setting posts. This 976 ml bag replaces two bags of concrete and is ideal for all types of posts, including wood, steel, and PVC. Specifications: Type: Expansive Foam, Volume: 976 ml (33 fl oz), Suitable For: Wood, steel, and PVC posts, Replaces: 2 bags of concrete. Looking for an easy way to set your posts? This bag of Sika Post Fix is the perfect solution! Just mix and pour. Cash accepted.