The product is a 0.5kg pack of galvanised round wire nails, measuring 100mm in length and with a 4mm head diameter. These standard nails are suitable for use in timber and steel, with a flat head style and galvanised finish. Made in the United Kingdom, the nails are designed with a 4mm gauge for secure and durable fastening. Ideal for DIY projects and general use, these nails offer a reliable and versatile solution for various home improvement tasks.