You are buying 12 (Twelve) NEW 1/8" DIAMETER by 12" LONG BLACK EXTRUDED ACRYLIC RODS. They are 3.175MM diameter. (Eighth inch Diameter x Twelve inch Long) These rods are SOLID OPAQUE BLACK. Zero light transmission. You are buying and will receive TWELVE 1/8" diameter x 12" BLACK rods. The last picture is a representation of the flexibility of the rods, as they are only 1/8" in diameter. Please keep this in mind if you are looking for something rigid. The color of the rod in this photo may not be the color you have ordered and will be receiving. They are not rigid but flexible. However, if the rods are put under pressure, they will snap. To assure that you get the finest quality, the protective sleeve is kept in place on the rods while being cut to protect the acrylic. All rods have saw cut edges on both ends. Please allow a tolerance of +/- 1/16" on all pieces.