RUGID eco-friendly, non-toxic snap and zipper lubricant gel can be applied directly to difficult snaps and zippers to aid in opening, closing and protection. This waterproof, non-toxic formula is made in the USA and specially formulated to protect against corrosion and salt water. Unlike waxes, our gel formula can be applied and allowed to soak in to stuck and difficult zippers and closures - ideal for boat covers, soft tops, jackets, plastic or metal zippers, wet and drysuits, soft coolers, and more. Will not harm metals, plastics or waterproof synthetic fabrics. 1/2 ounce bottle applicator. RUGID is a veteran-owned, USA-based company.