The toothbrush rug needles are 4" in length
The eye of the needle is 3/16" wide by 5/8" long.
The needles are printed from Polylactic acid (PLA). PLA is derived from renewable resources like cornstarch and tapioca roots and is biodegradable. The only trade off for not sitting in a landfill for future super intelligent apes to find is the glass transition temperature of PLA (temperature where the plastic gets soft) is 60–65 °C. (140-149 °F). So do not keep them in your oven, your car in the summer or anywhere that you would not want to hang out.
