geometric mind maps

so for these we recommend that you use a regular brush

a focus on the hyper-active Belgian writers Solid from the PSK

and squeezers

pentel energel gel roller refill lr7 0 7 mm Pentel Colors:Navy Blue geometric mind mapsTip: 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