Size medium - inside diameter of 18mm.
Made from recycled HDPE.
HDPE, number 2 in the recycling triangle, comes from things like bottle tops, milk bottles and shampoo containers.
 
Each item is unique, we don't add anything to the plastic we recycle, so colours are mixed based on what we collect.
 
The photo represents an example colour mix and is not a complete match to what you might receive. We can make these to order, let us know if there are particular colour mixes you would like.