*THIS ITEM IS NOT 3/8" ON THE INSIDE. 3/8" is the approximate outer dimension. Because it is a braided product, the dimensions change based on how tight is pulled. It is a different braid than the Slinky Drifter cord that used to be available. Our customers that used the 3/8" Slinky Drifter have been using this 1/2" as a replacement. Our Black 3/8 inch Sinker Cord is similar to our 650 Coreless but with a stronger braid in larger widths. It is often used in whip making, cord sleeving, bracelets or as a sheath for small cables but is a great choice for any project that requires a flat or hollow cord. It easily fits BBs, bearings or lead shot fro making soft, flexible and snag proof weights. Made in the USA 32 Strand Nylon Sheath Approx. Outside Width: 3/8 inch Mildew and Rot Resistant 100% Nylon Please note that actual cord colors may vary from the sample photo. Click here for additional color information. Also, the manufacturing process results in a small percentage of spools with two separate lengths of cord. If your project requires a continuous length of cord, please let us know by email following checkout.