Manilla Tuff Ones 16mm are designed to replicate the Manilla Boilies, these toughened hook baits are made using the same base-mix as the normal bottom baits, but with the inclusion of extra binders. As you may have noticed, Manilla boilies straight from the bag are extremely soluble and break down very quickly, meaning they can only be used as a hook bait for a short period of time. So, for a long lasting bottom bait...try a Tuff One! Supplied in 16mm or 20mm diameter, in 160g tubs. Flavour Manilla.Size 16mm.Bottom bait.160g tub.