These high density foam blocks are the perfect base to needle felt into for 2D (‘painting with wool’) needle felting. However they are also useful to start off a 3D felted item. Use one side and then turn over to use the 2nd side. The block measures a nom 7″ x 5″ x 1.5″ deep (18x13x4cm). You can store spare needles by pushing them into the side of the block – but remember to remove them before you start felting or you will probably break the needle you are using. It works out much cheaper to buy multiple quantities (as it costs me the same to send 4 as 1 as they have to go as a parcel via Hermes and not letter post).