UltraSource Chemical Resistant Vinyl Sleeve, 4 mil, 18", Blue (Pack of 24) 100% waterproof and protects against harmful acids, solvents, fats, and oils Durable vinyl material is highly against snags, punctures, and abrasions; optimal for safety around machinery and moving parts 18" length with elastic sealed enclosure on each end for a snug fit Ideal for wet environments or industrial work where handling chemicals/dangerous substances is common Superior antistatic properties