Each Aquabright Swirl acrylic pen blank measures 3/4" x 3/4" x 5"; Blanks will arrive raw and unfinished; Polishing needed to bring out the bright, vibrant, glossy appearance. Use sharp tools and light cuts when turning the blanks on your lathe. After turning to your desired shape, use plastic finishing products on the blank to make it shine and give it depth. Great to use for all of your woodturning projects that are compatible with these dimensions. Each blank is unique; Pattern and colors can vary slightly.