You are buying 1 (ONE) NEW 2" DIAMETER by 12" LONG TUBE of BLUE TRANSLUCENT EXTRUDED ACRYLIC. (Two inch x Twelve inch). This tube has a 1/8" thick wall which provides an outside dimension (OD) of 2" and an inside dimension (ID) of 1 3/4". As you can see from the picture of the tubes on the black grid, these tubes are translucent. The color of the tubes might vary depending on the back round color and light conditions due to being translucent. As you can see from the photos, depending on the light conditions, the tube can appear as blue or also have a blue/purple tinge to it. In different lights the tube can appear more purple than blue. The 6th photo is the tube in natural outdoor light. In pictures 7-9, the photos represent the tube under fluorescent light, and appears with a purple tinge. Please look at all the photos in the listing previous to purchase. Thank you!You are buying and will receive ONE 2" OD x 12" long translucent BLUE tube. 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. Please allow a tolerance of +/- 1/16" on all cuts.