Also known as 'bug' pins, these beauties are good for fabric and craft projects too. Spare the butterflies and use these ultra fine black pins for your silks and fine fabrics. From Merchant & Mills, who are proud to have sourced the finest, blackest pins known to man. Topped with a tiny brass head. For butterflies and fine fabrics, these are irresistible. 38mm x 0.45mm. 100 pins per box.