"EASY-TO-USE, PRE-MEASURED CONCENTRATE COMBATS HARD WATER DEPOSITS AND NORMAL TOILET BOWL SEDIMENTS WITHOUT USING HARSH ACIDS OR CAUSTICS; THE WATER SOLUBLE PACKET RELEASE EFFERVESCING CLEANING AGENTS ALONG WITH A BURST OF FRESH FLORAL FRAGANCE; BOX CONTAINS 2 TUBS OF 90 EACH (.5 OUNCE) PACKETS"