The small Jersey barriers are 23mm high (just under 1″) and the taller ones are 35mm high (just under 1.5″).
The broken variant is provided in two halves with a length of 1.75mm thick plastic tubing from which you can cut your own “rebar”.
Sold in sets of 6. For the broken set you get six sets of two broken halves.
Miniatures shown for scale and are not included. Designed and printed in PLA in Newcastle, Australia.