This kit is designed to equip the user with the proper ratio of Pbs Sealant & Pbs Prep to maintain the de-ice boots on an aircraft. Aircraft operators normally use 2 quarts of Pbs Prep for every 1 quart of Pbs Sealant. The kit includes two reusable Microfiber applicators to apply Pbs Sealant, and two reusable scrubbing sponges for cleaning boots with Pbs Prep. This economical kit is the best possible system for achieving fantastic results when refurbishing de-ice boots.