These come direct from the manufacturer and have not been stored well so give a used look. Require polishing and repainting before use. Quality is not great hence the price. Screws into place by a 3mm metric thread at the bottom of the post. 62.37mm long end to end. 7.98mm diameter. Suitable for use with pins with a diameter of 1.5 to 1.6mm max. Note these are not suitable for all 1.10 models please check measurements before ordering.