North American Slippery Elm Wood Turning Pen Blanks | Wood Pen Blanks 5 Pack | 3/4" X 3/4" X 5" Small mill sourced - Salvage and sustainable harvested woods Heartwood is light to medium reddish brown Typically called Red Elm in most woodworking applications Wood and sawdust of Slippery Elm wood are known to cause irritation of the eyes, nose, skin and lungs, and may stimulate allergies and asthma - precautionary measures are advised... a good dust mask is essential.