The Molotow Coversall Dripstick is the filled version of Molotow's popular Dripstick Mop. This marker comes filled with Molotow's opaque alcohol based Coversall formula ink. This ink has great coverage and a nice flow. A really nice feature of the Dripstick is the "Easy-Refill" design that allows you to quickly and easily refill the marker by unscrewing the back instead of taking off the nib. The .860DS-L is the smaller version of the Dripstick. It has a 10mm Nib and holds 70ml (over 2oz). REFILLABLE.