These brushes are long slim round and flexible no corner or base is too small or too narrow for them you can also use them on glasses coffee mugs and decorative glass bottles contents 1 x long handled brush slim 44 x 3 cm 1 x short handled brush slim 27 x 3 cm 1 x short handled brush mid sized 25 x 5 cm 1 x short handled brush large 28 x 75 cm material brush head 100 polyethylene handle 100 polypropylene