OXBALLS makes the best cocksheaths, big ones, long one, thick, new skinny-thin sheaths...all designed to fit right and stay on. All our sheaths are built on our original cocksling base to they fit you no matter how hard you play. We include with every cocksheath and bullet shape insert to adjust the inside-shaft length for the best fit for you. Made of clear, discrete Flextpr, they “disappear” and feel just like your shaft. Each insert shortens the inside shaft about 7/8”. Shaped to snugly fit and form together.