This kit contains 5 pieces of pressure -sensitive backed 3M Scotchlite reflective material which help increase visibility under low light conditions. The kit is designed to fit the 3M SecureFit Safety Helmet series X5000 and X5500.This kit contains 5 pieces of pressure -sensitive backed 3M Scotchlite reflective material which help increase visibility under low light conditions. The kit is designed to fit the 3M SecureFit Safety Helmet series X5000 and X5500.