Giffin - Lid Master Caliper trimming-carving Natural sponges have been used

Natural sponges have been used for years

Our sponges are made of an environmentally friendly material that is incredibly durable and compressed for economy of space and for the fun of watching them expand when introduced to water

it is also an indispensable tool for shaping and carving leather-hard clay

15mm diameter shaft

Giffin - Lid Master Caliper trimming-carving Natural sponges have been usedMake one measurement and you have it's opposite immediately! It's an easy to use, accurate way to size lids for pots. You can also make a lid for an already fired pot, by reassembling the wing nut and screw in the 12 1 2% hole. This way your lid will shrink to fit the pot.