Invictas Sea Spider is all manmade muscle! Invicta has taken the best and most ingenious of mechanisms and woven a brilliant web of endurance and stamina. The youthful spirit of Sea Spider is spun with meticulous precision and a uniquely constructed polyurethane band linked with stainless pins offering secure flexibility. With an array of vibrant colors to match the dexterity and stamina of any sport, the Sea Spider is lightweight to make you a heavyweight in any rugged realm of play.