<https://elecity.co.uk/product/25mm-nylon-stuffing-gland-pack-of-10-black-ip68/#product>
<http://schema.org/description>
"Supplied with locknut and washer\r\n \tSuitable for 13-18mm cable\r\n \tWidth: 25mm\r\n \tLength: 33mm\r\n \tIP68"
<https://elecity.co.uk/product/25mm-nylon-stuffing-gland-pack-of-10-black-ip68/>