Welcome to the home of Sperm Keyrings

Micro Plas Mouldings Ltd have been making and supplying the Sperm Key Rings to sexual health professionals in the UK and overseas since 2002.

As a UK manufacturing, engineering and mould tool making company, we have been working to develop the range of sperm keyrings and other promotional goods to maximize your sexual health programme / campaign.

After pioneering the Glow in the Dark sperm keyring we now make a selection of sperms in colours that span the spectrum and are the first to introduce a Thermochromic sperm which changes colour with temperature.