The idea is to take a tissue or wet wipe box and place in it pieces of material for them to pull out. This is what ours looked like it's literally an empty cardboard tissue box with strips of green felt material, you could make it more interesting with different colours and textures, but green was all I had.
This is what Little Dude got up to with it....
He really seemed to enjoy trying to pull the materials out, but the pieces at the bottom were a bit trickier for him so I think he'll enjoy doing this again.
Very quick and easy, but something a bit different for him to do!
Note - Babies need to be fully supervised with this activity as they may put materials in their mouths or round their necks.