Leader Trays 1-8 25mm based, are designed for games where leaders are randomly drawn: Sharp Practise, What a Cowboy for example. 

 Made from 2 layers of 2mm MDF the trays are engraved with Leader numbers 1-8

The 8 drilled for diameter 4mm magnets 25mm bases are included

Please see Leader Trays for models on HORSE pill bases and the "drilled" version of both styles.