Left to right. African Blackwood & Maple (friction polish) Yellowheart & English Walnut CA finish) English Walnut endgrain pen (CA finish) Maple & English walnut (friction polish) Dymondwood (friction polish) Maple & Purpleheart (friction polish) Left to right. Mopani (friction polish) Zebrawood (CA finish) Africian Blackwood & Paduk & Yellowheart (CA finish) Construction grade plywood (CA finish...that sounds weird.)