so for these we recommend that you use a regular brush

geometric mind maps

A compact rigid hardcover notebook with a 5 mm dot grid — fits jacket pockets and small bags while providing a self-supporting writing surface for standing and field use

The breadth of the palette handles everything from delicate botanical studies and complex portrait work through to multi-layered fine art drawings and large-scale wash illustrations

and squeezers

pentel energel gel roller refill lr7 0 7 mm Pentel Colors:Navy Blue so for these we recommendTip: 0. 7 mm conical metal tungsten carbide ball 0. 35 mm line width Dimensions: 110 mm length 6. 2 mm barrel diameter Compatibility: Pentel EnerGel BL77, BL57, BL107, and Sterling Philography luxury frames A direct replacement cartridge for EnerGel retractable and capped models same high velocity liquid gel formula as the original pen, combining low friction liquid ink glide with zero feathering gel hold. Bonds instantly with paper fibers for smudge