Sofft Covers These innovative Covers are sized specifically for use with Sofft Knives. They transform Knives into absorbent tools, capable of carrying and releasing color and material in a unique way. Sofft Covers are made from our specially formulated micropore sponge which is semi-absorbent. Sofft Knives When used with Sofft Covers, the traditional painting knife is transformed into a multi-use and absorbent applicator for art and craft techniques. These inexpensive tools function like a cross between a brush and a knife. Each knife has been ergonomically designed to fit in the hand for ease of use and for good control. Sofft Knives are made from a flexible, and durable plastic material. The handles are shaped like wooden handle knives for maximum comfort. Sofft Knives can also be used without Sofft Covers as traditional painting knives.